Used benchmarks and test system:The data can be found here
DOOM3 - 1600x1200,32-bit, 4XAA
Halo - 1600x1200, 32-bit, NoAA
3DMark05 - 1024x768 Default
Athlon 64 2.4GHz, 1GBDDR400, ASUS SLI
NVIDIA SLI benchmarks
Posted on Wednesday, October 13 2004 @ 23:55 CEST by Thomas De Maesschalck
NVIDIA supplied HardOCP with some numbers of benchmarks that compare the performance of a single and SLI configuration of its graphics cards. The cards used in this test were the GeForce 6600 GT, 6800GT and 6800 Ultra cards.