VR-Zone has done up a quick comparison of the newly released Detonator 40.41 against the last Detonator 30.82. Benchmarks like 3DMark2001SE, Quake3, Comanche 4, Serious Sam SE and RTCW are used. The performance improvements are pretty remarkable especially for 3DMark2001SE where scores imcreased by over 1000 3dmarks!

NVIDIA Detonator 40.41 Comparison @VR-Zone.com