Game Testing 2GB versus 4GB of Memory on Vista 64-bit

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The Test System

The Main Test System

The test system was running Windows Vista Ultimate 64-bit with SP1 and all available updates. The Gigabyte X38-DQ6 motherboard was running BIOS F9a, which was released last month and was the most recent. The XFX GeForce 9800 GX2 graphics card used Forceware 175.16 video card drivers. The Intel Core 2 Quad QX9770 ‘Yorkfield’ processor was used for testing and was overclocked in order to reach 1142MHz for the memory kits and to also help eliminate the CPU from being the limiting factor in some of the benchmarks. The final clock frequency on the processor was 3.86GHz, which was 660MHz higher than stock. The test system was water cooled with a Corsair Nautilus 500 to ensure throttling of the processor wouldn’t cause any issues. Both the 2GB and 4GB kits of memory were set to run at default timings of 5-5-5-15 2T.

Intel Test Platform



Live Pricing


Intel Core 2 Quad QX9770


Gigabyte X38-DQ6


2GB & 4GB Corsiar 9136C5

Video Cards

XFX GeForce 9800 GX2

Hard Drive

Western Digital SATA 250Gb


Corsair Nautilus 500

Power Supply

Corsair HX620W

Operating System

Windows Vista Ultimate

CPU-Z and GPU-Z Screen Shots of the Test System:

CPU-Z and GPU-Z of the Test System

 Now that we know exactly what the test system is, we can move along to performance numbers.

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