| OCZ RevoDrive X2 PCI-Express SSD |  |
| Reviews - Featured Reviews: Storage | |
| Written by Olin Coles | |
| Friday, 19 November 2010 | |
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Page 7 of 12
ATTO Disk BenchmarkThe 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. Additionally, ATTO Disk Benchmark offers a queue depth range of 2-10, however our tests use the default value of 4. ATTO Disk Benchmark requires that an active partition be set on the drive being tested, which is formatted to the NTFS file system. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.
Our basic bandwidth speed tests begin with the OCZ RevoDrive X2 SSD installed onto the X58-Express motherboard, as the ATTO Disk Benchmark tool performs file transfers ranging from 0.5 KB to 8192 KB. The 240GB model we received reveals 831 MB/s maximum read speed that plateaus from 128-8192 KB file chunks at a queue depth of 4, and 688 MBps peak write bandwidth which plateaus from 64-8192 KB. OCZ's reviewer guide suggests that ATTO be tested with a queue depth of 10, which offered slightly different results:
At QD-10 the OCZ RevoDrive X2 improves 4 MBps to 835 MBps maximum read speed that plateaus from 128-8192 KB file chunks, and a nearly identical 687 MBps peak write bandwidth plateaus from 64-8192 KB. Since all previous ATTO tests were conducted with the default queue depth of 4, here's how the collection stacks up:
Although not charted above, a pair of SandForce-driven SF-1200 SSDs configured with 128K-stripes in a RAID-0 set produced 579 MBps peak read speeds, and 545 MBps peak write bandwidth. Drive Hardware
In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool...
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Comments
I'm yet to upgrade to any SSD yet unfortunately, still waiting for the technology to move on a bit / become more affordable.
I'm debating weather to get an extra c300 (256 gig) for raid 0,(total 500gigs >700 mb/sec read/500 rights) extra $525
Vs Revodrive x2 256gig one, extra $699.
(aren't the Sandforce 2500, 2600 controllers out soon as well?)
TRIM is not needed for Revodrive X2 due to the garbage collecting algorithms built into SandForce. TRIM is a sloppy patch job on a problem that should of never existed and on any good drive will not be needed.