ATI Radeon HD 5870 + 5850 Crossfire – Mixing Video Cards

The Test System

All testing was done on a fresh install of Windows 7 Ultimate 64-bit
with all the latest updates installed. All benchmarks were completed on
the desktop with no other software programs running. The Corsair
DOMINATOR memory modules were run in triple-channel mode at 1866MHz
with 8-8-8-24 timings.

The NVIDIA GeForce graphics cards were benchmarked with Forceware 191.07 drivers; the ATI Radeon HD graphics cards were tested with 8.66.6 CATALYST drivers. The ASUS P6T Deluxe V2 motherboard was run using BIOS 0610 with the processor running stock
settings and Turbo enabled.

Windows 7 Drivers Used:
Intel Chipset Inf Update Program V9.1.1.1014
SoundMAX 2000B Audio Driver V6.10.2.6585 for Windows 64bit Windows 7.(WHQL)
Marvell Yukon Gigabit Ethernet Driver V11.10.5.3 for 32/64bit Windows 7.(WHQL)

Here is the Intel LGA 1366 Test platform:

Intel Test Platform
Component	Brand/Model	Live Pricing
Processor	Intel Core i7 975	Click Here
Motherboard	ASUS P6T Deluxe V2	Click Here
Memory	6GB Corsair DDR3 1866MHz	Click Here
Video Card	See Below	Click Here
Hard Drive	Western Digital VelociRaptor	Click Here
Cooling	Intel Reference	Click Here
Power Supply	Cooler Master 1000W	Click Here
Chassis	None (Open Bench)	Click Here
Operating System	Windows 7 Ultimate 64-Bit	Click Here