Our testing methods
In truth, we don't have anything even remotely comparable to line up against four X25-Es strapped to a fancy hardware RAID card. So we've thrown a little of everything at this beastly storage configuration instead, including hardware RAM disks from Gigabyte and ACard, a collection of SSDs including the X25-E Extreme on its own, and a handful of the fastest 3.5" desktop drives on the market.
To keep the graphs on the following pages easier to read, we've color-coded the bars by manufacturer. Our X25-E RAID 0 array appears in bright blue, with Intel's X25-series SSDs appearing in a lighter hue. Note that we also have a set of RAID 0 results for the ANS-9010 RAM disk. Those results were from a virtual two-drive config running off our test system's ICH7R south bridge RAID controller.
All tests were run three times, and their results were averaged, using the following test system.
|Processor||Pentium 4 Extreme Edition 3.4GHz|
|System bus||800MHz (200MHz quad-pumped)|
|Motherboard||Asus P5WD2 Premium|
|North bridge||Intel 955X MCH|
|South bridge||Intel ICH7R|
|Chipset drivers||Chipset 18.104.22.1683
|Memory size||1GB (2 DIMMs)|
|Memory type||Micron DDR2 SDRAM at 533MHz|
|CAS latency (CL)||3|
|RAS to CAS delay (tRCD)||3|
|RAS precharge (tRP)||3|
|Cycle time (tRAS)||8|
|Graphics||Radeon X700 Pro 256MB with CATALYST 5.7 drivers|
Seagate Barracuda 7200.11 1TB
Seagate Barracuda ES.2 1TB
Samsung SpinPoint F1 1TB
Hitachi Deskstar E7K1000 1TB
Western Digital VelociRaptor 300GB
Western Digital Raptor WD1500ADFD 150GB
Western Digital Caviar Black 1TB
Western Digital RE3 1TB
Western Digital Caviar SE16 640GB
Seagate Barracuda 7200.11 1.5TB
Samsung FlashSSD 64GB
Intel X25-M 80GB
Intel X25-E Extreme 32GB
Gigabyte i-RAM with 4GB DDR400 SDRAM
ACard ANS-9010 with 16GB DDR2-800 SDRAM
|OS||Windows XP Professional|
|OS updates||Service Pack 2|
Thanks to NCIX for getting us the SpinPoint F1.
Our test system was powered by an OCZ PowerStream power supply unit.
We used the following versions of our test applications:
The test systems' Windows desktop was set at 1280x1024 in 32-bit color at an 85Hz screen refresh rate. Vertical refresh sync (vsync) was disabled for all tests.
All the tests and methods we employed are publicly available and reproducible. If you have questions about our methods, hit our forums to talk with us about them.
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