Page 2 - A Closer Look, Installation, Test System
As always, before we move onto the fancy technical details about OCZ's latest Vertex series solid state drive based on the Indilinx Barefoot 3 controller, let's briefly discuss the physical attributes of this SSD first. The OCZ Vertex 460 240GB takes on the new form factor first introduced in the original OCZ Vector 256GB and OCZ Vertex 450 256GB. Featuring rounded corners and a large label reminiscent of its packaging that covers the entire front surface, the OCZ Vertex 460 240GB is a really good looking SSD to look at... not that anyone will be staring at the drive all day. The Vertex 460 is the company's first drive released on to the market after being acquired by Toshiba, so the black cover label is all new with just 'OCZ' branding rather than 'OCZ Technology'. I have to say, it is very clean looking, and I like it.
Measuring in at 99.7 x 69.75 x 7 mm, its thickness -- or lack thereof -- will ensure wide compatibility. That said, it is a bit heavier than other SSDs though, with a manufacturer's specification of a rather porky 113g In other words, it is a whole 2g lighter than its cousin, the Vector 150. OCZ Vertex 460 drives will have no problems fitting into your laptop hard disk bay if you want to boost mobile computing performance, considering pretty much all new laptops have 7mm bays. On the other hand, if you want to use it in your desktop and your chassis has no 2.5" mount, then you are in luck -- as usual, a 3.5" adapter bracket is included right out of the box, so you can easily install this SSD in any standard desktop internal drive bay. This makes the Vertex 460 quite convenient to deploy in either environments for the end user. My only complaint is that the screw holes on the 3.5" adapter bracket is slightly smaller compared to the ones found on standard 3.5" hard drive, so if you need to use any other screws other than the ones provided by OCZ (Such as, if your are installing the Vertex 460 into a 3.5" drive bay that require screws provided by your chassis manufacturer due to use of vibration dampeners) then you may have a little bit of trouble.
Turning the SSD around reveals a flat metal backplate. This is something users will come to expect from a solid state drive, as there are no exposed printed circuit boards like you would normally see with a traditional hard disk. The only thing that is common between the OCZ Vertex 460 240GB SSD and a traditional hard disk drive is its SATA 6Gb/s and corresponding power connector at the end. As shown in our photo above, you will find a large label with the usual series of certification logos, along with information on the brand, capacity, and serial number. In case you missed it, our particular unit is the OCZ Vertex 460 240GB, haha. As with all OCZ SSDs, they are all made in Taiwan, and this one is no exception.
The OCZ Vertex 460 240GB has a separate top and bottom plate, and is attached to the metal frame by four small screws on each panel. One of the screws has a warranty seal over it, so in order to take a peek inside the SSD, you will have to inevitably void your three year warranty. To save you some trouble, I cracked mine open to take some photos of its internals for you to see. And by doing so, it is unsurprising to find how simple an SSD is inside compared to a traditional HDD. As always, you will find a small OCZ designed green printed circuit board, and that is it. Of course, there is more than what that meets the eye. The heart of OCZ's Vertex 460 240GB is the Indilinx Barefoot 3 controller. This is the same one found in its predecessor. As the drive controller is fundamentally very important to any SSD, let's dig more into the details of its brain.
To go back into a little bit of history, OCZ purchased Indilinx for $32 million in March of 2011. Prior to this, while OCZ has been designing and building their own PCBs, there was nothing that really differentiated their products from the competition -- every drive consists of pretty much off-the-shelf hardware. Companies like G.Skill, Corsair, Kingston, and Patriot has been doing this as well, and other than optimizations you do on the firmware level, they are all essentially the same thing under the hood.
With the release of the Indilinx Everest controller seen in the OCZ Octane 512GB, and subsequently, the Everest 2 found in the Vertex 4 256GB and Agility 4 256GB, OCZ is now selling products developed in house -- so to say -- that sets it apart from the competition. This ambitious acquisition plugs OCZ into the ranks of being a genuine SSD manufacturer, and not just a run of the mill company slapping together parts available to every kid on the block. To be absolutely fair, the Everest series are not real in house controllers (They are actually Marvell licensed units with heavily customized firmware), the Barefoot 3 in the Vertex 460 we are reviewing today is the real deal, as we have explored last year. The Vertex 460 furthers OCZ's shift in ideology for their solid state drives. Yes, speed is still important. Rated at 540MB/s read, 525MB/s write, and 90,000 IOPS over SATA 6Gb/s, these figures are nearly identical to its predecessor, and marginally slower than the flagship Vector 150. But performance is not everything. OCZ also claims quality, reliability, and stability are top priorities as well, and have done extensive work in their testing and validation for both its hardware and software. Its write endurance has not changed from the Vertex 450's 20GB per day rating, but for most consumers, this is still significantly more than enough. Ironically, from my experience in owning nearly a dozen SSDs from the company, I have never had any issues with their SandForce based drives, but I did experience a number of failures with their latest models. This is quite the opposite of what most people are reporting, so they are probably isolated incidents.
As aforementioned, the Barefoot 3 is the first controller developed 100% in house by OCZ. A thermal pad on the bottom metal casing helps out in dissipating heat away from the controller. The Indilinx Barefoot 3 IDX500M10 is an ARM Cortex architecture processor with a 32-bit OCZ Aragon co-processor at an unspecified clock speed. The IDX500M00 in the Vector and Vector 150 is clocked at 400MHz, so it is safe to assume the more value oriented IDX500M10 in the Vertex 460 is probably a little slower. The ARM Cortex processor handles the SATA interface, while the co-processor manages the data moving in and out of the flash memory chips. The 8-channel flash controller features an internal randomizer, ECC engine, and ONFI/Toggle NAND compatibility. Unfortunately, it is not Microsoft eDrive compatible, which is too bad.
While SandForce takes significant pride on their ability to do on-the-fly compression and the lack of need for external cache, the Indilinx Barefoot 3 does just the opposite. The OCZ controller is paired with 512MB of memory, in which we will take a look at in just a moment. Also, it does not compress information before writing, making performance identical regardless of the data written is compressible or not. Of course, you are going to sacrifice some speed (And possibly higher write amplification, but we have no specific information on that) when dealing with compressible data, but the speed and IOPS rating of OCZ's Vertex 460 is very impressive. As usual, we have the standard array of features from the controller that works in the background, such as automatic garbage collection and TRIM. Other than that, OCZ withholds quite a bit of information about the Barefoot 3, so this is all we can talk about in this section.
A total of sixteen NAND flash chips are found on the OCZ Vertex 460 240GB solid state disk, with eight on each side. The chips used are Toshiba TH58TEG7DDJBA4C synchronous flash memory, with a capacity of 16GB per integrated circuit chip. These are toggle mode multi-level cells manufactured on the 19nm fabrication process. Since OCZ is now owned by Toshiba, you really don't expect them to use flash chips from other brands, haha. The same chips are found in the Vector 150. Unlike the original Vector and Vertex 450, 16GB out of the 256GB total capacity (Just under 7%) is provisioned for the drive controller for enhanced write endurance and lowered write amplification, so the actual usable space is 240GB, as advertised. You will see 223GB in Windows. Two Micron MT41J256M8HX-15E 256MB DDR3 chip, labeled D9LGK, are present for a total of 512MB RAM; used with the Indilinx Barefoot 3 controller to ensure smooth operation.
Our test configuration as follows:
CPU: Intel Core i5-2500K @ 4.50GHz
CPU Cooling: Thermaltake WATER2.0 Pro (Noctua NF-F12)
Motherboard: ASUS P8P67 WS Revolution
RAM: Kingston HyperX Beast KHX21C11T3K2/16X 4x8GB
Graphics: Gigabyte Radeon HD 7870 2GB OC
Chassis: Lian Li PC-B12
Power: PC Power & Cooling Silencer Mk III 1200W
Sound: Auzentech X-Fi Bravura
Operating System: Microsoft Windows 7 Professional x64 SP1
- OCZ Vertex 460 240GB
- G.Skill Phoenix EVO 115GB
- Kingston HyperX 3K 240GB
- Kingston HyperX 120GB
- Kingston SSDNow V+200 120GB
- Kingston SSDNow V300 120GB
- 2x Kingston SSDNow V+200 120GB RAID 0
- OCZ Agility 3 240GB
- OCZ Agility 4 256GB
- OCZ Octane 512GB
- OCZ Vector 150 240GB
- OCZ Vector 256GB
- OCZ Vertex 2 160GB 25nm
- OCZ Vertex 2 60GB 34nm
- OCZ Vertex 3 Max IOPS 240GB
- OCZ Vertex 3.20 240GB
- OCZ Vertex 4 256GB
- OCZ Vertex 450 256GB
- Patriot Pyro 120GB
- Patriot Pyro SE 240GB
- SanDisk Extreme II 240GB
- SanDisk Ultra Plus 256GB
1. Introduction and Specifications
2. A Closer Look, Installation, Test System
3. Benchmark: AIDA64 Disk Benchmark
4. Benchmark: ATTO Disk Benchmark
5. Benchmark: Crystal Disk Mark 3.0
6. Benchmark: HD Tach 220.127.116.11
7. Benchmark: HD Tune Pro 4.60
8. Benchmark: PassMark PerformanceTest 7.0
9. Benchmark: PCMark Vantage