OCZ's Vertex 2 Pro Preview: The Fastest MLC SSD We've Ever Tested
by Anand Lal Shimpi on December 31, 2009 12:00 AM EST- Posted in
- Storage
The Test
I should preface the benchmarks with the following spoiler: the SandForce based OCZ Vertex 2 Pro is the fastest single-controller MLC SSD I’ve ever tested. You can post higher numbers with internally RAIDed solutions like the OCZ Colossus, but for a single drive using MLC flash - I haven’t seen anything faster than the Vertex 2 Pro.
To be honest, this was my first experience with a pre-release non-Intel SSD that went flawlessly. The Indilinx drives always had issues that had to be worked out, but SandForce is operating in a completely different class. The SF engineers and marketing folks I spoke with kept calling their technology enterprise-class. Given the crap that I’ve seen in the SSD market, I think I’d tend to agree. It just works and it seems to work well.
| CPU | Intel Core i7 965 running at 3.2GHz (Turbo & EIST Disabled) |
| Motherboard: | Intel DX58SO (Intel X58) |
| Chipset: | Intel X58 |
| Chipset Drivers: | Intel 9.1.1.1015 + Intel IMSM 8.9 |
| Memory: | Qimonda DDR3-1066 4 x 1GB (7-7-7-20) |
| Video Card: | eVGA GeForce GTX 285 |
| Video Drivers: | NVIDIA ForceWare 190.38 64-bit |
| Desktop Resolution: | 1920 x 1200 |
| OS: | Windows 7 x64 |
New vs. Used Performance - Hardly an Issue
With the X25-M G2 Intel managed to virtually eliminate the random-write performance penalty on a sequentially filled drive. In other words, if you used an X25-M G2 as a normal desktop drive, 4KB random write performance wouldn’t really degrade over time. Even without TRIM.
Intel accomplished this by doubling its external DRAM size from 16MB to 32MB and simply using more historical data in its write placement algorithms. SandForce accomplished virtually the same thing, but thanks to its write-less (DuraWrite) technology:
| OCZ Vertex 2 Pro 100GB | "New" Performance | "Used" Performance |
| 4KB Random Write | 50.9 MB/s | 45.2 MB/s |
| 2MB Sequential Write | 252 MB/s | 252 MB/s |
I saw 4KB random write speed drop from 50MB/s down to 45MB/s. Sequential write speed remained similarly untouched. But now I’ve gone and ruined the surprise.
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Shark321 - Monday, January 25, 2010 - link
Kingston has released a new SSD series (V+) with the Samsung controller. I hope Anandtech will review it soon. Other sites are not reliable, as they test only sequential read/writes.Bobchang - Wednesday, January 20, 2010 - link
Great Article!it's awesome to have new feature SSD and I like the performance
but, regarding your test, I don't get the same random read performance from IOMeter.
Can you let me know what version of IOMeter and configuration you used for the result? I never get more than around 6000 IOPS.
AnnonymousCoward - Wednesday, January 13, 2010 - link
Anand,Your SSD benchmarking strategy has a big problem: there are zero real-world-applicable comparison data. IOPS and PCMark are stupid. For video cards do you look at IOPS or FLOPS, or do you look at what matters in the real world: framerate?
As I said in my post here (http://tinyurl.com/yljqxjg)">http://tinyurl.com/yljqxjg), you need to simply measure time. I think this list is an excellent starting point, for what to measure to compare hard drives:
1. Boot time
2. Time to launch applications
_a) Firefox
_b) Google Earth
_c) Photoshop
3. Time to open huge files
_a) .doc
_b) .xls
_c) .pdf
_d) .psd
4. Game framerates
_a) minimum
_b) average
5. Time to copy files to & from the drive
_a) 3000 200kB files
_b) 200 4MB files
_c) 1 2GB file
6. Other application-specific tasks
What your current strategy lacks is the element of "significance"; is the performance difference between drives significant or insignificant? Does the SandForce cost twice as much as the others and launch applications just 0.2s faster? Let's say I currently don't own an SSD: I would sure like to know that an HDD takes 15s at some task, whereas the Vertex takes 7.1s, the Intel takes 7.0s, and the SF takes 6.9! Then my purchase decision would be entirely based on price! The current benchmarks leave me in the dark regarding this.
rifleman2 - Thursday, January 14, 2010 - link
I think the point made is a good one for an additional data point for the decision buying process. Keep all the great benchmarking data in the article and just add a couple of time measurements so, people can get a feel for how the benchmark numbers translate to time waiting in the real world which is what everyone really wants to know at the end of the day.Also, Anand did you fill the drive to its full capacity with already compressed data and if not, then what happens to performance and reliability when the drive is filled up with already compressed data. From your report it doesn't appear to have enough spare flash capacity to handle a worse case 1:1 ratio and still get decent performance or a endurance lifetime that is acceptable.
AnnonymousCoward - Friday, January 15, 2010 - link
Real world top-level data should be the primary focus and not just "an additional data point".This old article could not be a better example:
http://tinyurl.com/yamfwmg">http://tinyurl.com/yamfwmg
In IOPS, RAID0 was 20-38% faster! Then the loading *time* comparison had RAID0 giving equal and slightly worse performance! Anand concluded, "Bottom line: RAID-0 arrays will win you just about any benchmark, but they'll deliver virtually nothing more than that for real world desktop performance."
AnnonymousCoward - Friday, January 15, 2010 - link
Icing on the cake is this latest Vertex 2 drive, where IOPS don't equal bandwidth.It doesn't make sense to not measure time. Otherwise what you get is inaccurate results to real usage, and no grasp of how significant differences are.
jabberwolf - Friday, August 27, 2010 - link
The better way to test rather then hopping on your mac and thinking thats the end-all be-all of the world is to throw this drive into a server, vmware or xenserver... and create multiple VD sessions.1- see how many you can boot up at the same time and run heavy loads.
The boot ups will take the most IOPS.
Sorry but IOPS do matter so very much in the business world.
For stand alone drives, your read writes will be what your are looking for.
Wwhat - Wednesday, January 6, 2010 - link
This is all great, finally a company that realizes the current SSD's are too cheap and have too much capacity and that people have too much money.Oh wait..
Wwhat - Wednesday, January 6, 2010 - link
Double post was caused by anadtech saying something had gone wrong, prompting me to retry.Wwhat - Wednesday, January 6, 2010 - link
This is all great, finally a company that realizes the current SSD's are too cheap and have too much capacity and that people have too much money.Oh wait..