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AMD Radeon HD 7870 And 7850 Review: Pitcairn Gets Benchmarked

Test Setup And Benchmarks

Today’s story is going to be a little different than what you’ve seen from us in the past. The Radeon HD 7850 that AMD sent our US office was so unreliable that it wasn’t usable in a vast number of benchmarks. More on that when we break into the individual tests. AMD wasn’t able to get us a working replacement, so much of our performance data comes from Tom’s Hardware DE by way of Igor Wallosek. The result is that we have two different test systems.

Tom's Hardware DETom's Hardware US
CPUIntel Core i7-2600K (Sandy Bridge), @ 4.5 GHz, Hyper-Threading enabledIntel Core i7-3960X (Sandy Bridge-E), @ 3.6 GHz, Hyper-Threading enabled
MotherboardGigabyte Z68X-UD7 B3Socket 1155, Chipset: Intel Z68ASRock X79 Extreme9LGA 2011, Chipset: Intel X79
NetworkingOn-Board Gigabit LAN controllerOn-Board Gigabit LAN controller
MemoryKingston HyperX, 2 x 4 GB, 1600 MT/sCorsair Vengeance LP PC3-16000, 4 x 4 GB, 1600 MT/s, CL 8-8-8-24-2T
GraphicsAMD Radeon HD 6950800 MHz GPU, 1 GB GDDR5 at 1250 MHzAMD Radeon HD 6970880 MHz GPU, 2 GB GDDR5 at 1375 MHzAMD Radeon HD 7850860 MHz GPU, 2 GB GDDR5 at 1200 MHzAMD Radeon HD 78701000 MHz GPU, 2 GB GDDR5 at 1200 MHzAMD Radeon HD 7950800 MHz GPU, 3 GB GDDR5 at 1250 MHzNvidia GeForce GTX 560 Ti822 MHz GPU, 1 GB GDDR5 at 1002 MHzNvidia GeForce GTX 570732 MHz GPU, 1.25 GB GDDR5 at 950 MHzNvidia GeForce GTX 580772 MHz GPU, 1.5 GB GDDR5 at 1002 MHz
Hard DriveKingston V100+ 256 GB (SSD) Samsung 256 GB (SSD)
PowerePower EP-1200E10-T2 1200 W ATX12V, EPS12VePower EP-1200E10-T2 1200 W ATX12V, EPS12V
Software and Drivers
Operating SystemMicrosoft Windows 7 x6, Service Pack 1
DirectXDirectX 11
Graphics DriversAMD Catalyst 12.3 beta