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Written by Olin Coles   
Wednesday, 05 September 2012
Table of Contents: Page Index
ADATA XPG SX900 Solid State Drive
Closer Look: ADATA XPG SX900 SSD
Features and Specifications
SSD Testing Methodology
AS-SSD Benchmark
ATTO Disk Benchmark
CrystalDiskMark 3.0 Tests
Iometer IOPS Performance
EVEREST Disk Benchmark
PCMark Vantage HDD Tests
ADATA XPG SX900 SSD Conclusion

EVEREST Disk Benchmark

Many enthusiasts are familiar with the Lavalys EVEREST benchmark suite, but very few are aware of the Disk Benchmark tool available inside the program. The EVEREST 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. EVEREST 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).

Everest-Read-ADATA-XPC-SX900-256GB-SSD.png

The high-performance storage products we've tested with EVEREST Disk Benchmark are connected to the Intel P67-Express SATA 6Gb/s controller and use a 1MB block size option. Read performance on the ADATA XPG SX900 solid state drive measured average speeds of 488.2 MB/s, with a close maximum peak speed of 496.6 MB/s. Everest linear write-to tests were next...

Everest-Write-ADATA-XPC-SX900-256GB-SSD.png

The waveform chart above illustrates how well the ADATA XPG SX900 managed file transfers, making linear write performance appears very consistent. ADATA's XPG SX900 solid state drive recorded an average linear write-to speed of 471.0 MB/s, with maximum performance reaching 474.4 MB/s.

The chart below shows the average linear read and write bandwidth speeds for a cross-section of storage devices tested with EVEREST:

Everest-Disk-Benchmark_Results.png

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...



 

Comments 

 
# RE: ADATA XPG SX900 Solid State DriveServando Silva 2012-09-06 22:30
I'm using a pair of SX900 on RAID 0 mode with my P8Z77-I Deluxe and it's a total pleasure.
Maximum Read for seq. files is around 1,100 MB. I couldn't be happier. Before those, I had an Agility 2, and before Intel X-25M, G Skill Phoenix Pro and OCZ Agility 1.

Thank you for the review, Olin.
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# RE: ADATA XPG SX900 Solid State DriveDavid Ramsey 2012-09-10 12:24
Holy crap! Newegg's selling the 512G version for $339!
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# Eggzactly!RealNeil 2012-09-11 07:01
They do have some outstanding sales at the Egg, but that's usually ~after~ I've spent all of my monthly mad money.
I have an ADATA 120GB SATA-II SSD on my old i7-870 Lynnfield system that is still damn fast. I've had no problems with it and have been using it for a long time. The price was good when I bought it too.
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# RE: ADATA XPG SX900 Solid State Drivev1ewr 2012-09-12 01:43
Why doesn't anybody test the Mushkin Chronos 240GB SSD [MKNSSDCR240GB] to compare the others with?
Maybe because it rates as high or higher than most SSDs of same capacity? ;-) And it's also cheaper than most:
##newegg.com/Product/Product.aspx?Item=N82E16820226237
I got 2 of these, and I'm very happy with their performance.
CrystalDiskMark: 508, 238, 463, 223, 35, 17, 128, 57
AS SSD Benchmark: 516, 236, 22, 17, 125, 41, score 380
Testbed PC [relevant parts]:
CPU: Intel i7-3960X @ 4.2GHz
Mobo: Gigabyte GA-X79-UD3 liquid cooled
RAM: 16GB Corsair Vengeance 1866 CMZ16GX3M4X1866C9R XMP Profile 1
AHCI enabled in BIOS.

HTH [hope this helps]
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# RE: RE: ADATA XPG SX900 Solid State DriveDavid Ramsey 2012-09-12 07:41
Probably because Mushkin hasn't sent out any review samples.
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# RE: RE: ADATA XPG SX900 Solid State DriveOlin Coles 2012-09-12 07:42
Good to hear you found a bargain on SSDs in the Mushkin Chronos series. Unfortunately, Mushkin's marketing team is given very few product samples, and they only ship them to sites that give favorable reviews. We're not on the top of their list.
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# Raid 6mikeinnyc 2012-09-12 20:23
Read - 791 mb/s Write - 813.2 mb/s in Raid 6 Configuration(Don't use 0)

I have a SuperComputer(micro) Intel E7-8860 with 4 CPUS. I needed faster speeds for my VMs. In the VM world spindles are garbarge even in raid 0. Multitasking and opening up 10 in a row is now no problem. Easily detected in BIOS and configured 123 with external backup.

I use 10 VMs for algo development and replication of results in D:\ drive.

Smoked my OCZ Vertex 3 Badly which is fast and is my C drive... for now.

Note: install SSD with proper harddrive casing (if Raid)otherwise the 3 1/2" casing won't fit. Holes are off by 2cm. It will work in regular computer not in enterprise. The SSD were an exact fit of my Raptors so I was able to install it in hdcasing no problem. So far so good. All 5 drives tested ok. Also this is my first Adata purchase... never heard of them but I guess you all will. Fastttttttt.
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# I need this!!!Anthony Moore 2012-09-18 14:48
Starcraft 2, Diablo 3, Borderlands 3...They take up a lot of space. I need one of these badly!
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