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Test Settings

GeForce GTX 285 On Water Cooling: Zotac's Infinity Edition

We wanted to reduce the effect of CPU “bottlenecking” by overclocking, but also wanted to use a setting nearly anyone could match. Our 3.20 GHz speed is identical to that of the Core i7 Extreme 965.

Test System Configuration


Intel Core i7 920 (2.66 GHz, 8.0 MB Cache)

Overclocked to 3.20 GHz (BCLK 200)

CPU Cooler

Swiftech Liquid Cooling: Apogee GTZ water block,

MCP-655b pump, and 3x120 mm radiator


Asus P6T

Intel X58/ICH10R Chipset, LGA-1366


6.0 GB DDR3-1600 Triple-Channel Kit

CAS 8-8-8-24 at 1.65 V

GTX 285 Air-Cooled

XFX GeForce GTX 285 1,024 MB

648/1,476/2,484 MHz GPU/Shader/DRAM (data rate)

Air-Cooled Overclock

754/1,613/2,550 MHz GPU/Shader/DRAM (data rate)

GTX 285 Liquid-Cooled

Zotac GeForce GTX 285 Infinity Edition 1,024 MB

722/1,584/2,700 GPU/Shader/DRAM (data rate)

Liquid-Cooled Overclock

722/1,584/2,711 GPU/Shader/DRAM (data rate)

Hard Drives

WD VelociRaptor WD30000HLFS

0.3 TB, 10,000 RPM, 16 MB Cache


Integrated HD Audio


Integrated Gigabit Networking


Cooler Master RS-850-EMBA

ATX12V v2.2. EPS12V, 850W, 64A combined +12V





Microsoft Windows Vista Ultimate x64 SP1

GraphicsNVidia Forceware 182.08


Intel INF

We chose three configurations to represent Zotac’s GeForce GTX 285 Infinity Edition and its air-cooled counterparts. Incredibly, our air-cooled GPU overclocked even better than Zotac’s liquid-cooled solution did, although the air-cooled card’s maximum memory speed was far lower.

As the performance leader of our recent $200-300 X58 Motherboard Comparison, the Asus’ P6T is now our new standard platform.

Western Digital’s 300 GB VelociRaptor first impressed us last year with excellent performance and the company has since improved this product with a new sink that supports standard 3.5” SATA drive racks.

Our ancient Gigabyte 3D Galaxy II liquid cooling system was hauled out of retirement and used exclusively for cooling the GTX 285 Infinity’s water block. Its 120 mm single-fan radiator should be typical of the per-card cooling most builders would choose, as two- to three-card systems often use two to three fan radiators.

Benchmark Configuration

Call of Duty: World at War

Patch 1.1, FRAPS / saved game
Highest Quality Settings, No AA / No AF, vsync off
Highest Quality Settings, 4x AA / Max AF, vsync off


Patch 1.2.1, DirectX 10, 64-bit executable, benchmark tool
Very High Quality Settings, No AA / No AF (Forced)
Very High Quality Settings, 4x AA / 8x AF (Forced)

Far Cry 2

DirectX 10, Steam Version, in-game benchmark
Very High Quality Settings, No AA, No AF (Forced)
Very High Quality Settings, 4x AA, 8x AF (Forced)

Left 4 Dead

Very High Details, No AA / No AF, vsync off
Very High Details, 4xAA / 8x AF, vsync off

World in Conflict

Patch 1009, DirectX 10, timedemo
Very High Quality Settings, No AA / No AF, vsync off
Very High Quality Settings, 4x AA / 16x AF, vsync off

3D Mark Vantage

Version 1.02: 3DMARK, GPU, CPU scores
Performance, High, Extreme Presets

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