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OCZ Vertex 460 SSD Review
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By Olin Coles
Manufacturer: OCZ Storage Solutions
Product Name: Vertex 460 2.5″ Solid State Drive
Model Number: VTX460-25SAT3-240G (240GB Capacity)
UPC: 842024036241 (240GB model)
Prices: $189.99 (Amazon | Newegg)
Full Disclosure: The product sample used in this article has been provided by OCZ Storage Solutions.
OCZ Storage Solutions, formerly OCZ Technology and now a Toshiba Group Company, was quick to produce its first performance product under the new company banner: Vertex 460 solid state drive. The new OCZ Vertex 460 SSD features an Indilinx Barefoot 3 (BF3-M10) controller and Toshiba 19nm Multi-Level Cell (MLC) NAND flash components with secure AES-256 data encryption and Trim support. Vertex 460 is good for 540 MB/s read and 525 MB/s write speeds over a SATA 6-Gb/s connection, and replaces the Vertex 450 as the fastest solid state drive in the product series. In this article Benchmark Reviews tests the 240GB OCZ Vertex 460 SSD, model VTX460-25SAT3-240G, against the leading competition.
On paper the OCZ Vertex 460 looks incredibly similar to the Vertex 450 it replaces. Both utilize a Barefoot 3 M10 controller that promises up to 540 MB/s read speeds and 85,000 IOPS performance, 525 MB/s write speeds and 90,000 write I/O, and both offer OCZ’s three-year product warranty. However, the key developments that improve Vertex 460 beyond Vertex 450 are the NAND flash and sustained IOPS performance: Vertex 460 uses Toshiba 19nm MLC compared to 20nm NAND components in Vertex 450, while sustained IOPS increased from 7,000 to 21,000.
OCZ Vertex 460 utilizes the Indilinx Barefoot 3 controller, which was used on the OCZ Vector Solid State Drive series that debuted at the beginning of 2013. The BF3-M10 edition controller features a power-optimized clock generator that runs at a slightly lower clock speed. This produces lightly reduced transfer speeds and IOPS performance by comparison, but also improves yield which reduces cost to consumers.
Solid State vs Hard Disk
Despite decades of design improvements, the hard disk drive (HDD) remains the slowest component of any personal computer system. Consider that modern desktop processors typically have a 1 ns response time (nanosecond = one billionth of one second), while system memory responds between 30-90 ns. Traditional hard disk technology utilizes spinning media, and even the fastest mechanical storage products still exhibit a 9 ms (9,000,000 ns) initial response time (millisecond = one thousandth of one second). In more relevant terms, the processor sends the command, but must wait for system memory to fetch data from the storage drive. This is why any computer system is only as fast as the slowest component in the data chain, which is usually the hard drive.
In a perfect world all of the components would operate at the same speed: system memory signals as quickly as the central processor, and the storage drive fetches data as fast as memory. With present-day technology this is an impossible task, so enthusiasts try to close the speed gaps between components as much as possible. Although system memory is up to 90x (9000%) slower than most processors, consider that the hard drive is an additional 1000x (100,000%) slower than memory. Essentially, these three components are as different in speed as crawling (HDD) is to walking (RAM) is to running (CPU).
Solid State Drive technology bridges the largest gap in these response times. The difference a SSD makes to operational response times and program speeds is dramatic, and takes the storage drive from a slow ‘crawling’ speed to a much faster ‘walking’ speed. Solid State Drive technology improves initial response times by more than 450x (45,000%) for applications and Operating System software, when compared to their mechanical HDD counterparts. The biggest mistake PC hardware enthusiasts make with regard to SSD technology is grading them based on bandwidth speed alone. File transfer speeds are important, but only so long as the operational I/O performance can sustain that bandwidth under load.
Bandwidth Speed vs Operational Performance
As we’ve explained in our SSD Benchmark Tests: SATA IDE vs AHCI Mode guide, Solid State Drive performance revolves around two dynamics: bandwidth speed (MB/s) and operational performance I/O per second (IOPS). These two metrics work together, but one may be more important than the other. Consider this analogy: bandwidth determines how much cargo a ship can transport in one voyage, and operational IOPS performance is how fast that ship moves. By understanding this and applying it to SSD storage, there is a clear importance set on each variable depending on the task at hand.
For casual users, especially those with laptop or desktop computers that have been upgraded to use an SSD, the naturally quick response time is enough to automatically improve the user experience. Bandwidth speed is important, but only to the extent that operational performance meets the minimum needs of the system. If an SSD has a very high bandwidth speed but a low operational performance, it will take longer to load applications and boot the computer into Windows than if the SSD offered a higher IOPS performance.
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Closer Look: OCZ Vertex 460 SSD
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Solid state storage devices have gained quick popularity with performance-minded consumers because they work equally well in PC, Linux, or Apple computer systems. Likewise, these drives install quite easily into both desktop and notebook platforms without any modification necessary. The OCZ Vertex 460 SSD Series is designed for the high-performance user segment, and gives personal computers a much faster response time that can help boost productivity.
In this article Benchmark Reviews will test the 240GB OCZ Vertex 460 solid state drive, which comes packaged in a cardboard retail kit with the SSD and drive bay adapter. OCZ offers the Vertex 460 SSD series in three standard capacities: 120, 240, and 480GB. These models share the same part numbers with a capacity designation: VTX460-25SAT3-240G that represents the 240 GB model. All OCZ Vertex 460 solid state drive products measure 99.7mm L x 69.75mm W x 7mm H. Vertex 460 is for sale available online for $189.99 (Amazon | Newegg).
The 240GB model we received is specified to reach 540 MB/s for sequential reads and 525 MB/s sequential writes. OCZ specifies 4K random reads up to 85,000 IOPS and random writes up to 90,000 IOPS. Although Vertex 460’s product specifications advertise extremely fast performance ratings, these solid state drive products are designed with a focus on product reliability. The Indilinx controller and OCZ firmware inside Vertex 460 SSDs receive a long validation cycle to ensure optimal stability is delivered to the consumer, enabling OCZ Storage Solutions to offer a three-year product warranty. These features help factor into the consumer’s decision to make a purchase, as it improves long-term value of the product.
Unlike fragile Hard Disk Drive (HDD) storage products, SSDs are not nearly as sensitive to impact damage and do not require (or benefit from) any kind of special vibration dampening or shock-proof enclosures. Once installed the SSD is usually hidden away from view, which explains why OCZ has maintained a conservative appearance on the Vertex 460 SSD series.
The OCZ Vertex 460 SSD features a 7.0mm thick chassis that comes with a textured silver metal finish. OCZ utilizes a standard two-piece metal enclosure for Vertex 46series SSDs, with a series branding label at the top panel and product information label on the bottom. Internal components are revealed by removing four small counter-sunk screws located at the bottom of this solid state drive.
Standard 2.5″ drive bay mounting points are pre-drilled into the SSD chassis with fine screw threading, allowing this drive to fit directly into notebook computers that use SATA connections. The SSD mounting positions matched up to the drive bracket on my notebook computer, and after only a few minutes of upgrading I booted-up from a restored Windows 7 System Backup Image with ease. Optionally, by using the included 3.5″ to 2.5″ drive bay adapter this SSD will also install directly into ATX desktop computer cases.
Backwards compatible with SATA 1.5 GB/s and 3.0 GB/s interfaces, the SATA 6.0 GB/s Indilinx Barefoot 3 controller offers: native TRIM garbage collection for supported Operating System (such as Microsoft Windows 7/8), Native Command Queuing (NCQ) with 32 command slots, and basic Self-Monitoring, Analysis, and Reporting Technology (SMART) command set. Indilinx Barefoot 3 SSDs offer BCH error correcting capable of 44 bits correction per 1KB of data, and AES-256 data encryption.
OCZ Vertex 460 utilizes the Indilinx Barefoot 3 controller, which was used on the OCZ Vector Solid State Drive series that debuted at the beginning of 2013. The BF3-M10 edition controller features a power-optimized clock generator that runs at a slightly lower clock speed (compared to Vector). This produces lightly reduced transfer speeds and IOPS performance by comparison, but also improves yield which reduces cost to consumers. Maximum read speeds climb to 540 MB/s or 525 MB/s for writes on this 240GB model. 4K random read IOPS performance reaches 85,000, while random write operations top out at 90,000 IOPS.
In the next few sections we’ll test the OCZ Vertex 460 solid state drive, comparing this solid state drive to other retail products intended for notebook and desktop installations.
OCZ Vertex 460 Features
- Cutting-edge controller technology delivers maximum performance and superior endurance without compression or loss of usable capacity
- Advanced suite of NAND flash management keeps your drive at higher sustained performance over the long term
- Designed for ultimate reliability with in-house technology and high quality components
- Excels in both incompressible and compressible data types such as multimedia, encrypted data, .ZIP files and software
- Bundled with a 3.5-inch desktop adapter bracket and Acronis True Image cloning software with Windows® 8 support to easily transfer data from your old hard drive
- Sleek alloy housing offers slimmer 7mm z-height for compatibility with the latest thinner form factor notebooks
OCZ Vertex 460 Specifications
Source: OCZ Storage Solutions
| PERFORMANCE | 120GB | 240GB | 480GB |
|---|---|---|---|
| Sequential Reads1 | 530MB/s | 540MB/s | 545MB/s |
| Sequential Writes1 | 420MB/s | 525MB/s | 525MB/s |
| Random Read Speed (4K, QD32)2 |
80,000 IOPS | 85,000 IOPS | 95,000 IOPS |
| Random Write Speed (4K, QD32)2 |
90,000 IOPS | 90,000 IOPS | 90,000 IOPS |
| Steady-State Random Write Speed (4K, QD32)3 |
12,000 IOPS | 21,000 IOPS | 23,000 IOPS |
1. Maximum sequential speeds are determined using ATTO
2. Small file I/O performance is measured using IOmeter 2010
3. Measured with Iometer 2010, 12 hour precondition to SNIA guidelines
Please Note: Current performance specs reflect update to latest firmware.
| PHYSICAL | |
|---|---|
| Usable Capacities (IDEMA) | 120GB, 240GB, 480GB |
| NAND Components | 19nm Toshiba Multi-Level Cell (MLC) Flash |
| NAND Controller | OCZ Barefoot 3 M10 |
| Interface | SATA 3 6Gb/s (Backwards compatible with SATA II 3Gb/s) |
| Form Factor | 2.5-inch, ultra-slim 7mm |
| Dimension (L x W x H) | 99.7 x 69.75 x 7mm |
| Weight | 113g |
| RELIABILITY / PROTECTION | |
|---|---|
| Data Path Protection | BCH ECC corrects up to 44 random bits/1KB |
| Endurance | Rated for 20GB/day of host writes for 3 years under typical client workloads |
| Product Health Monitoring | Self-Monitoring, Analysis and Reporting Technology (SMART) Support |
| Encryption | AES-256 |
| MTBF | 2 million hours |
| ENVIRONMENTAL | |
|---|---|
| Power Consumption | Idle: 0.6W, Active: 2.70W |
| Operating Temperature | 0°C ~ 70°C |
| Storage Temperature | -45°C ~ 85°C |
| Shock Resistance | 1500G/0.5ms |
| Vibration (Operational) | 2.17Grms (7-800Hz) |
| Vibration (Non-operational) | 16.3Grms (20-2000Hz) |
| Certifications | UL C/US, FCC, CE, C-Tick, KCC, BSMI, VCCI, WEEE |
| COMPATABILITY | |
|---|---|
| Serial ATA (SATA) | Fully compliant with SATA International Organization: Serial ATA Revision 3.0. Fully compliant with ATA/ATAPI-8 Standard Native Command Queuing (NCQ) |
| Power Requirements | Standard SATA Power Connector |
| Operating System | Windows / Mac / Linux |
| Targeted Applications | Client workstations and laptops |
| ADDITIONAL FEATURES | |
|---|---|
| Performance Optimization | TRIM (requires OS support), Idle Time Garbage Collection |
| Included Accessories | Acronis True Image HD cloning software registration key; 3.5″ desktop adapter |
| Service & Support | 3-Year Warranty, Toll-Free Tech Support, 24 Hour Forum Support, Firmware Updates |
| ORDERING INFORMATION | PART NUMBER | UPC |
|---|---|---|
| 120G | VTX460-25SAT3-120G | 842024036234 |
| 240G | VTX460-25SAT3-240G | 842024036241 |
| 480G | VTX460-25SAT3-480G | 842024036258 |
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SSD Testing Methodology
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Solid State Drives have traveled a long winding course to finally get where they are today. Up to this point in technology, there have been several key differences separating Solid State Drives from magnetic rotational Hard Disk Drives. While the DRAM-based buffer size on desktop HDDs has recently reached 64 MB and is ever-increasing, there is still a hefty delay in the initial response time. This is one key area in which flash-based Solid State Drives continually dominates because they lack moving parts to “get up to speed”.
However the benefits inherent to SSDs have traditionally fallen off once the throughput begins, even though data reads or writes are executed at a high constant rate whereas the HDD tapers off in performance. This makes the average transaction speed of a SSD comparable to the data burst rate mentioned in HDD tests, albeit usually lower than the HDD’s speed.
Comparing a Solid State Disk to a standard Hard Disk Drives is always relative; even if you’re comparing the fastest rotational spindle speeds. One is going to be many times faster in response (SSDs), while the other is usually going to have higher throughput bandwidth (HDDs). Additionally, there are certain factors which can affect the results of a test which we do our best to avoid.
SSD Testing Disclaimer
Early on in our SSD coverage, Benchmark Reviews published an article which detailed Solid State Drive Benchmark Performance Testing. The research and discussion that went into producing that article changed the way we now test SSD products. Our previous perceptions of this technology were lost on one particular difference: the wear leveling algorithm that makes data a moving target. Without conclusive linear bandwidth testing or some other method of total-capacity testing, our previous performance results were rough estimates at best.
Our test results were obtained after each SSD had been prepared using DISKPART or Sanitary Erase tools. As a word of caution, applications such as these offer immediate but temporary restoration of original ‘pristine’ performance levels. In our tests, we discovered that the maximum performance results (charted) would decay as subsequent tests were performed. SSDs attached to TRIM enabled Operating Systems will benefit from continuously refreshed performance, whereas older O/S’s will require a garbage collection (GC) tool to avoid ‘dirty NAND’ performance degradation.
It’s critically important to understand that no software for the Microsoft Windows platform can accurately measure SSD performance in a comparable fashion. Synthetic benchmark tools such as ATTO Disk Benchmark and Iometer are helpful indicators, but should not be considered the ultimate determining factor. That factor should be measured in actual user experience of real-world applications. Benchmark Reviews includes both bandwidth benchmarks and application speed tests to present a conclusive measurement of product performance.
Test System
- Motherboard: ASUS P8P67 EVO (Intel P67 Sandy Bridge Platform, B3 Stepping)
- Processor: Intel Core i7-2600K 3.4 GHz Quad-Core CPU
- System Memory: 4GB Dual-Channel DDR3 1600MHz CL6-6-6-18
- SATA 6Gb/s Storage HBA: Integrated Intel P67 Controller
- AHCI mode – Intel Rapid Storage Technology Driver 11.7.0.1013
- SATA 3Gb/s Storage HBA: Integrated Intel P67 Controller
- AHCI mode – Intel Rapid Storage Technology Driver 11.7.0.1013
- Operating System: Microsoft Windows 7 Ultimate Edition 64-Bit with Service Pack 1
Storage Hardware Tested
The following storage hardware has been used in our benchmark performance testing, and may be included in portions of this article:
- Crucial RealSSD-C300 CTFDDAC256MAG-1G1 256GB SATA 6Gb/s MLC SSD
- Crucial m4 CT256M4SSD2 256GB SATA 6Gb/s MLC SSD
- Intel X25-E Extreme SSDSA2SH032G1GN SATA 3Gb/s SLC SSD
- Intel SSD 311 Series Larson Creek SSDSA2VP020G2E
- Intel SSD 320 Series MLC Solid State Drive SSDSA2CW160G3
- Intel SSD 335 Series Solid State Drive SSDSC2CT240A4K5
- Intel SSD 520 Series MLC Solid State Drive SSDSC2CW240A3
- OCZ Agility 2 OCZSSD2-2AGTE120G 120GB MLC SSD
- OCZ Agility 3 AGT3-25SAT3-240G 240GB MLC SSD
- OCZ Vertex 2 OCZSSD2-2VTXE120G 120GB MLC SSD
- OCZ Vertex 3 VTX3-25SAT3-240G 240GB MLC SSD
- OCZ Vertex 3.20 MLC SSD VTX3-25SAT3-240G.20 MLC SSD
- OCZ Vertex 4 VTX4-25SAT3-256G MLC SSD
- OCZ Vertex 450 VTX450-25SAT3-256G MLC SSD
- OCZ Vertex 460 VTX460-25SAT3-240G MLC SSD
- OCZ Octane OCT1-25SAT3-512G MLC SSD
- OCZ Vector VTR1-25SAT3-256G MLC SSD
- OCZ Vector 150 VTR150-25SAT3-240G MLC SSD
- Patriot Torqx 2 PT2128GS25SSDR 128GB MLC SSD
- WD SiliconEdge-Blue SSC-D0256SC-2100 256GB MLC SSD
Test Tools
- AS SSD Benchmark 1.6.4067.34354: Multi-purpose speed and operational performance test
- ATTO Disk Benchmark 2.46: Spot-tests static file size chunks for basic I/O bandwidth
- CrystalDiskMark 3.0.1a by Crystal Dew World: Sequential speed benchmark spot-tests various file size chunks
- Iometer 1.1.0 (built 08-Nov-2010) by Intel Corporation: Tests IOPS performance and I/O response time
- Finalwire AIDA64: Disk Benchmark component tests linear read and write bandwidth speeds
- Futuremark PCMark Vantage: HDD Benchmark Suite tests real-world drive performance
Test Results Disclaimer
This article utilizes benchmark software tools to produce operational IOPS performance and bandwidth speed results. Each test was conducted in a specific fashion, and repeated for all products. These test results are not comparable to any other benchmark application, neither on this website or another, regardless of similar IOPS or MB/s terminology in the scores. The test results in this project are only intended to be compared to the other test results conducted in identical fashion for this article.
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AS-SSD Benchmark
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Alex Schepeljanski of Alex Intelligent Software develops the free AS SSD Benchmark utility for testing storage devices. The AS SSD Benchmark tests sequential read and write speeds, input/output operational performance, and response times.
AS-SSD Benchmark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.
Beginning with sequential transfer performance, the 240GB OCZ Vertex 460 solid state drive produced speeds up to 495.36 MB/s for reads and 490.72 MB/s writes. Single-threaded 4K IOPS performance tests deliver 21.65 MB/s read and 67.60 MB/s write, while the 64-thread 4K reads recorded 325.72 MB/s and write performance was at 303.09 MB/s.
AS-SSD 64-thread 4KB IOPS performance results are displayed in the chart below, which compares several enthusiast-level storage products currently on the market. In the 64-thread 4KB IOPS performance tests, the 240GB OCZ Vertex 460 SSD easily surpassed much of the competition, and nearly matched performance with the original Vertex 4 solid state drive while offering far improved sustained performance.
The chart below is sorted by total combined performance, which helps illustrate which products offer the best operational input/output under load:
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.
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ATTO Disk Benchmark
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The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.46 version of the program that allow for test lengths up to 2GB, but all of our benchmarks are conducted with 256MB total length. ATTO Disk Benchmark requires that an active partition be set on the drive being tested. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.
ATTO Disk Benchmark: Queue Depth 4 (Default)
Our bandwidth speed tests begin with the OCZ Vertex 460 solid state drive attached to the Intel P67-Express SATA 6Gb/s controller operating in AHCI mode. Using the ATTO Disk Benchmark tool, the test drive performs basic file transfers ranging from 0.5 KB to 8192 KB.
The 240GB model provided to Benchmark Reviews for testing produced 553 MBps maximum read speeds that plateau from around 256-8192 KB file chunks, and 534 MBps peak write bandwidth that plateaus from 64-8192 KB. These results outperform OCZ’s specifications of 540/525 MBps for the 240GB Vertex 460 SSD model.
In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool…
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CrystalDiskMark 3.0 Tests
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CrystalDiskMark 3.0 is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results chart below, the 4KB 32-Queue Depth read and write performance was measured using a 1000MB space. CrystalDiskMark requires that an active partition be set on the drive being tested, and all drives are formatted with NTFS on the Intel P67 chipset configured to use AHCI-mode. Benchmark Reviews uses CrystalDiskMark to illustrate operational IOPS performance with multiple threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load.
CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.
CrystalDiskMark 3.0 reports sequential speeds reaching 499.7 MB/s reads and 494.1 MB/s writes. 512K test results reached 404.8 MB/s read and 477.7 MB/s write performance. 4K tests produced 24.68 read and 89.46 write performance. All CrystalDiskMark results produced by this 240GB OCZ Vertex 460 SSD were roughly equal to the Vertex 4 and 450, but were not high enough to surpass OCZ’s Vector series.
Maximum 4KB IOPS performance results at queue depth 32 are reported in the chart below. These values represent the performance levels for several enthusiast-level storage solutions, and illustrates which products offer the best operational performance under load:
In the next section, we continue our testing using Iometer to measure input/output performance…
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Iometer IOPS Performance
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Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. Iometer does for a computer’s I/O subsystem what a dynamometer does for an engine: it measures performance under a controlled load. Iometer was originally developed by the Intel Corporation and formerly known as “Galileo”. Intel has discontinued work on Iometer, and has gifted it to the Open Source Development Lab (OSDL). There is currently a new version of Iometer in beta form, which adds several new test dimensions for SSDs.
Iometer is both a workload generator (that is, it performs I/O operations in order to stress the system) and a measurement tool (that is, it examines and records the performance of its I/O operations and their impact on the system). It can be configured to emulate the disk or network I/O load of any program or benchmark, or can be used to generate entirely synthetic I/O loads. It can generate and measure loads on single or multiple (networked) systems.
To measure random I/O response time as well as total I/O’s per second, Iometer is set to use 4KB file size chunks over a 100% random sequential distribution at a queue depth of 32 outstanding I/O’s per target. The tests are given a 50% read and 50% write distribution. While this pattern may not match traditional ‘server’ or ‘workstation’ profiles, it illustrates a single point of reference relative to our product field.
All of our SSD tests used Iometer 1.1.0 (build 08-Nov-2010) by Intel Corporation to measure IOPS performance, using a SandForce-created QD30 configuration: 4KB 100 Random 50-50 Read and Write.icf. The chart below illustrates combined random read and write IOPS over a 120-second Iometer test phase, where highest I/O total is preferred:
In our Iometer tests, which are configured to use 32 outstanding I/O’s per target and random 50/50 read/write distribution, SandForce SSDs generally outperform the competition when tested with this large queue depth.
Previously, the OCZ Vertex 4 SSD delivered the best combined IOPS performance we’ve seen from any SATA-based SSD with 83,494. That was before the OCZ Vertex 460 produced 88299 for a new all-time top score, or the Vertex 450 with 87323. OCZ’s Vertex 3 Max IOPS Edition produced 83117, followed by the OCZ Vertex 460.
It should be noted that nearly all modern SSDs deliver I/O far beyond the needs of multi-tasking power users and hardcore gamers, and would be ideal for workstation systems running utilizing virtual machines.
In our next section, we test linear read and write bandwidth performance and compare its speed against several other top storage products using EVEREST Disk Benchmark. Benchmark Reviews feels that linear tests are excellent for rating SSDs, however HDDs are put at a disadvantage with these tests whenever capacity is high.
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AIDA64 Disk Benchmark
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Many enthusiasts are familiar with the Finalwire AIDA64 benchmark suite (formerly Lavalys EVEREST), but very few are aware of the Disk Benchmark tool available inside the program. The AIDA64 Disk Benchmark performs linear read and write bandwidth tests on each drive, and can be configured to use file chunk sizes up to 1MB (which speeds up testing and minimizes jitter in the waveform). Because of the full sector-by-sector nature of linear testing, Benchmark Reviews endorses this method for testing SSD products, as detailed in our Solid State Drive Benchmark Performance Testing article. However, Hard Disk Drive products suffer a lower average bandwidth as the capacity draws linear read/write speed down into the inner-portion of the disk platter. AIDA64 Disk Benchmark does not require a partition to be present for testing, so all of our benchmarks are completed prior to drive formatting.
Linear disk benchmarks are superior bandwidth speed tools in my opinion, because they scan from the first physical sector to the last. A side affect of many linear write-performance test tools is that the data is erased as it writes to every sector on the drive. Normally this isn’t an issue, but it has been shown that partition table alignment will occasionally play a role in overall SSD performance (HDDs don’t suffer this problem).
The high-performance storage products we’ve tested with Lavalys AIDA64 Disk Benchmark are connected to the Intel P67-Express SATA 6Gb/s controller and use a 1MB block size option. Charted above, read performance on the 240GB OCZ Vertex 460 solid state drive measured average speeds of 488.2 MB/s with a relatively close maximum peak speed of 497.4 MB/s. These read results remained very consistent across the full range of capacity. AIDA64 linear write-to tests were next…
The waveform chart below illustrates how well the OCZ Vertex 460 manages file transfers, and makes linear write performance appears relatively uneven. The results seen here are consistent with most other SSD products we’ve tested in the past that use a DRAM cache buffer. The 240GB OCZ Vertex 460 solid state drive recorded an average linear write-to speed of 358.1 MB/s, with maximum performance reaching 365.1 MB/s. While not as impressive as the read performance, the write-to results still surpassed many other SSDs.
The chart below shows the average linear read and write bandwidth speeds for a cross-section of storage devices tested with EVEREST:
Linear tests are an important tool for comparing bandwidth speed between storage products – although HDD products suffer performance degradation over the span of their areal storage capacity. Linear bandwidth certainly benefits the Solid State Drive, since there’s very little fluctuation in transfer speed. This is because Hard Disk Drive products decline in performance as the spindle reaches the inner-most sectors on the magnetic platter, away from the fast outer edge.
In the next section we use PCMark Vantage to test real-world performance…
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PCMark Vantage HDD Tests
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PCMark Vantage is an objective hardware performance benchmark tool for PCs running 32- and 64-bit versions of Microsoft Windows Vista or Windows 7. PCMark Vantage is well suited for benchmarking any type of Microsoft Windows Vista/7 PC: from multimedia home entertainment systems and laptops, to dedicated workstations and high-end gaming rigs. Benchmark Reviews has decided to use the HDD Test Suite to demonstrate simulated real-world storage drive performance in this article.
PCMark Vantage runs eight different storage benchmarks, each with a specific purpose. Once testing is complete, results are given a PCMark score while and detailed results indicate actual transaction speeds. The 240GB OCZ Vertex 460 SSD produced a total PCMark Vantage (secondary) HDD Test Suite score of 70053.0. Specific speeds are reported below:
240GB OCZ Vertex 460 SSD
Our tests were conducted on an Intel P67-Express Sandy Bridge motherboard using the onboard native SATA 6Gb/s controller with 64-bit Windows 7. Because new drivers were used, this test is not comparable to past tests and may not be fairly compared to storage devices attached to other computer systems.
In the next section, I share my review conclusion and final product rating.
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OCZ Vertex 460 SSD Conclusion
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IMPORTANT: Although the rating and final score mentioned in this conclusion are made to be as objective as possible, please be advised that every author perceives these factors differently at various points in time. While we each do our best to ensure that all aspects of the product are considered, there are often times unforeseen market conditions and manufacturer changes which occur after publication that could render our rating obsolete. Please do not base any purchase solely on our conclusion, as it represents our product rating specifically for the product tested which may differ from future versions. Benchmark Reviews begins our conclusion with a short summary for each of the areas that we rate.
Our first rating is Performance, which compares how effective the OCZ Vertex 460 SSD performs in operations against competing SATA-based solid state drive storage solutions. For reference, OCZ specifications suggest 540 MB/s maximum reads and 525 MB/s write speeds from the 240GB Vertex 460. In our storage benchmark tests this solid state drive performed up to and beyond this speed, producing results that compared with fastest SATA-based products previously tested. ATTO Disk Benchmark tests proved the 240GB OCZ Vertex 460 SSD was good for delivering 553/534 MBps peak read/writes speeds. Linear testing with AIDA64 Disk Benchmark produced 488/458 MB/s, placing performance above Vertex 450 levels.
The OCZ Vertex 460 solid state drive sent to us for testing is advertised to deliver up to 85,000 random 4KB read IOPS, and 90,000 random 4KB write IOPS. Using Iometer operational performance tests configured to a queue depth of 32 outstanding I/O’s per target across 100% of the drive, our benchmarks produced 82,374 combined IOPS performance – not quite the highest SATA-based test results we’ve obtained but still near the top. In the 4K 32QD tests using AS-SSD and CrystalDiskMark, the 240GB OCZ Vertex 460 SSD performed to the level of an enthusiast storage solution, but did not outperform its predecessor.
Taking these results together, it’s clear that OCZ have designed their Indilinx Barefoot 3 controller inside the Vertex 460 SSD series to deliver superior performance and reliability in real-world usage scenarios. Compared to other SSD products that utilize toggle or asynchronous NAND flash components, the synchronous NAND flash components used in the OCZ Vector series resist performance degradation as storage capacity is filled and represent the future of consumer-level solid state drives. Not only are these components fast, but they maintain better performance throughout the product’s lifetime.
Solid State Drives are low-visibility products: you see them just long enough to install and then they’re forgotten. Like their Hard Disk Drive counterparts, Solid State Drives are meant to place function before fashion. Anything above and beyond a simple metal shell is already more than what’s expected in terms of the appearance. OCZ Storage Solutions has created a sleek 7mm profile with appealing finish on their Vertex 460 series SSDs. As solid state storage controllers become faster and more advanced, heat dissipation through the enclosure walls may demand that chassis designs become more beneficial than they previously needed to be. For now, the thermal transfer pad that joins the metal chassis to an Indilinx Barefoot 3 controller suits it nicely.
Durability is the strongest feature credited to the entire SSD product segment. SSDs are not prone to mechanical failure, but if any Vertex 460-series solid state storage product does happen to fail during the 3-year warranty period, end-users may contact OCZ Storage Solutions via their company website or extensive support forums. Fortunately, there’s also a toll-free telephone number (800-459-1816) for free technical support and customer service questions. OCZ has been proven to be one of the best companies in the business when it comes to customer service, and replacement parts are often sent with priority delivery.
As of March 2014, the OCZ Vertex 460 SSD series is available online in the following capacities and prices:
- 120GB (VTX460-25SAT3-120G) – $99.99 (Amazon | Newegg)
- 240GB (VTX460-25SAT3-240G) – $189.99 (Amazon | Newegg)
- 480GB (VTX460-25SAT3-480G) – $359.99 (Amazon | Newegg)
The OCZ Vertex 460 SSD series reflects OCZ Storage Solutions’s dedication towards product reliability, and the Indilinx Barefoot 3 controller delivers usable I/O performance rather than simply generating fast file transfer speeds. Consumers have been brainwashed into thinking SSDs are all about transfer speeds despite the importance of operational input-output performance. Most of us use our computers to actually do and store things, instead of just moving data across an empty drive. The new Indilinx Barefoot 3 controller produces fast SATA 6 Gb/s speeds while generating impressive IOPS performance to support massive concurrent transactions like those a database server might require. Additionally, the use of 19nm Toshiba NAND flash components ensure that power-users never have to wait for their programs to open or data to be fetched.
With solid state drive technology finally nearing mainstream adoption, products like the OCZ Vertex 460 help to improve performance while delivering increased longevity. Equipped with 19nm NAND flash components that will help drive down costs, and a storage controller that secures data with AES-256 encryption, Vertex 460 shares several features (and performance metrics) with OCZ’s less-expensive Vector 150 SSD. While the chances are very good that Vertex 460 will outlast the computer system its installed into, the product’s three-year warranty will ensure that consumers are well protected. Benchmark Reviews recognizes the OCZ Vertex 460 SSD with our Silver Tachometer Award, earned for high-end performance and durability.
Pros:
+ Outstanding 553/534 MBps read/write speed with ATTO
+ Random 4K read/writes produced 82,374 IOPS
+ Indilinx Barefoot 3 processor offers native TRIM support
+ Automatic AES-256 data encryption
+ 3-Year OCZ product warranty support
+ Offered in 120/240/480GB storage capacities
+ Lightweight compact storage solution
+ Resistant to extreme shock impact
+ Low power consumption may extend battery life
Cons:
– Expensive enthusiast-level product
– Performs similar to OCZ Vector 150 SSD
– OCZ Vector 150 includes a 5-year warranty
Ratings:
- Performance: 9.00
- Appearance: 9.25
- Construction: 9.50
- Functionality: 9.00
- Value: 7.25
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Final Score: 8.8 out of 10.
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Quality Recognition: Benchmark Reviews Silver Tachometer Award.
COMMENT QUESTION: Which brand of SSD do you trust most?
