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Our testing methods
As ever, we did our best to deliver clean benchmark numbers. Tests were run at least three times, and the results were averaged.

Our test systems were configured like so:

ProcessorCore 2 Extreme X6800 2.93GHzCore 2 Extreme X6800 2.93GHz
System bus1066MHz (266MHz quad-pumped)1066MHz (266MHz quad-pumped)
MotherboardAsus P5N32-SLI DeluxeIntel D975XBX
BIOS revision0204BX97510J.86A.1073.2006.0427.1210
North bridgenForce4 SLI X16 Intel Edition975X MCH
South bridgenForce4 MCPICH7R
Chipset driversForceWare 6.86INF Update 7.2.2.1007
Intel Matrix Storage Manager 5.5.0.1035
Memory size2GB (2 DIMMs)2GB (2 DIMMs)
Memory typeCorsair TWIN2X2048-8500C5 DDR2 SDRAM at 800MHzCorsair TWIN2X2048-8500C5 DDR2 SDRAM at 800MHz
CAS latency (CL)44
RAS to CAS delay (tRCD)44
RAS precharge (tRP)44
Cycle time (tRAS)1515
Hard driveMaxtor DiamondMax 10 250GB SATA 150Maxtor DiamondMax 10 250GB SATA 150
AudioIntegrated nForce4/ALC850 with Realtek 5.10.0.6150 driversIntegrated ICH7R/STAC9221D5 with SigmaTel 5.10.5143.0 drivers
GraphicsRadeon X1900 XT 256MB PCI-E
with Catalyst 8.282-060802a-03584E-ATI drivers
Radeon X1950 XTX 512MB PCI-E + Radeon X1950 CrossFire
with Catalyst 8.282-060802a-03584E-ATI drivers
Radeon X1900 XTX 512MB PCI-E
with Catalyst 8.282-060802a-03584E-ATI drivers
 
 Radeon X1950 XTX 512MB PCI-E
with Catalyst 8.282-060802a-03584E-ATI drivers
 
GeForce 7900 GT 256MB PCI-E
with ForceWare 91.31 drivers
 
GeForce 7900 GTX 512MB PCI-E
with ForceWare 91.31 drivers
 
Dual GeForce 7900 GTX 512MB PCI-E
with ForceWare 91.31 drivers
 
GeForce 7950 GX2 1GB PCI-E
with ForceWare 91.31 drivers
 
OSWindows XP Professional (32-bit)
OS updatesService Pack 2, DirectX 9.0c update (August 2006)

Thanks to Corsair for providing us with memory for our testing. Their quality, service, and support are easily superior to no-name DIMMs.

Our test systems were powered by OCZ GameXStream 700W power supply units. Thanks to OCZ for providing these units for our use in testing.

Unless otherwise specified, image quality settings for the graphics cards were left at the control panel defaults.

The test systems' Windows desktops were set at 1280x960 in 32-bit color at an 85Hz screen refresh rate. Vertical refresh sync (vsync) was disabled for all tests.

We used the following versions of our test applications:

The tests and methods we employ are generally publicly available and reproducible. If you have questions about our methods, hit our forums to talk with us about them.