Tom's Hardware: "Our largest and most up-to-date 3D comparison covers 101 different graphics card configurations spanning five technology generations. The test includes the Radeon X800, X1000, HD 2000, HD 3000, GeForce 6, 7, 8, 9 families, as well as the new HD 4000 series from AMD and both of the GTX 200 models from Nvidia. A total of 500 hours of work was invested in the 6,767 test values, which consist of tests taken at three resolutions (1280x1024, 1680x1050 and 1920x1200 pixels) both with and without anisotropic filtering (AF) and anti-aliasing (AA).
The local grid provided more than 110,000 watts of power for our tests, while the neighbors were serenaded by the maximum noise level of 58.3 dB(A) when running AMD's Radeon HD 2900 XT CrossFire and X1950 CrossFire. The GTX 260 SLI and 8800 Ultra SLI reached temperatures of over 100 degrees C, causing the GPUs with no additional fans to give up and either choke thermally or crash the PC."