GeForce And Radeon On Intel's P67: PCIe Scaling Explored

Test Hardware And Benchmarks

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Test System Configuration
CPUIntel Core i7-2600K (Sandy Bridge) LGA 1155, 3.40-3.80 GHz, 8 MB L3 Cache Overclocked to 4 GHz at 1.25 V
MotherboardAsus P8P67 Pro, Intel P67 Express, LGA 1155, BIOS 1204 (01/27/2011)
RAMKingston KHX2133C9D3T1K2/4GX, 2 x 2 GB, DDR3-2133 at DDR3-1600 CAS 7-7-7-21, 1.60 V
Hard DriveWestern Digital WD1002FBYS, 1 TB, 7200 RPM, SATA 3Gb/s, 32 MB cache
GeForce GraphicsAsus ENGTX570/2DI/1280MD5, 742 MHz GeForce GTX 570 GPU, 1.25 GB GDDR5-3800
Radeon GraphicsXFX HD-695A-CNFC, 800 MHz Radeon HD 6950 GPU,  2 GB GDDR5-5000
SoundIntegrated HD Audio
NetworkIntegrated Gigabit Networking
PowerOCZ-Z1000M, 1000 W Modular, ATX12V v2.2, EPS12V, 80 PLUS Gold
Software
OSMicrosoft Windows 7 Ultimate 64-bit
GeForce GraphicsGeForce/Ion 266.58
Radeon GraphicsAMD Catalyst 11.2
ChipsetIntel INF 9.2.0.1019

Offering x16, x8, and x4 slots, we chose Asus’ P8P67 Pro to represent various slot configurations at maximum CPU performance.

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Benchmark Configuration
3D Games
Aliens Vs. Predator BenchmarkAlien vs Predator Benchmark Tool Test Set 1: Highest Settings, No AA Test Set 2: Highest Settings, 4x AA
CrysisPatch 1.2.1, DirectX 10, 64-bit executable, benchmark tool Test Set 1: Highest Quality, No AA Test Set 2: Highest Quality, 4x AA
F1 2010v1.01, Run with -benchmark example_benchmark.xml Test Set 1: Highest Settings, No AA Test Set 2: Highest Settings, 4x AA
Just Cause 2Version 1.0.0.2, Built-In Benchmark "Concrete Jungle" Test Set 1: Highest Details, No AA, 16x AF Test Set 2: Highest Details, 4x AA, 16x AF
S.T.A.L.K.E.R.: Call Of PripyatCall Of Pripyat Benchmark version, all options, HDAO Test Set 1: Ultra Preset, DX11 EFDL, Ultra SSAO, No AA Test Set 2: Ultra Preset, DX11 EFDL, Ultra SSAO, 4x MSAA
Synthetic Benchmarks and Settings
3DMark 11Version: 1.0.1.0, Benchmark Only
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.