Testbed and Methods

So, 10% GPU voltage boost in 3D mode allowed me to increase the GPU clock rate by 28% above the nominal. That’s good.

Of course, I couldn’t achieve this result without replacing the standard cooling system. As usual, I used the water-cooling solution Aquarius II from Thermaltake for my extreme overclocking experiments.

I tested the GeForce 6600 GT graphics card on the following testbed:

• Intel Pentium 4 Extreme Edition 3400MHz CPU (800MHz FSB);
• Intel D925XCV mainboard;
• 2x512MB Micron DDR2-533 SDRAM;
• Windows XP Pro, DirectX 9.0c, NVIDIA ForceWare 65.76.

I tested the graphics card in 1600x1200 resolution and at the maximum graphics quality settings. The driver’s settings of the anisotropic filtering optimization were left intact, i.e. enabled. I also performed the tests in 1600x1200 with forced 4x full-screen antialiasing and 8x anisotropic filtering.