Commanche 4 at 1024x768 has the K8NNXP leading by a hair.
UT2k3
The AK86-L edges the K8NNXP at 1024 but for those of you who play at a higher resolution it does not matter much as both boards are literally neck and neck at both 1280 and 1600.
X2 Rolling Demo
The AK86-L comes out on top of the K8NNXP although the margin is slim here as well. In a real world scenario the 2 fps is fairly miniscule and the end user will likely not notice.
Call of Duty
Here is where the AK86-L really flexes its muscles. A 10 FPS difference between the K8NNXP and the AK86-L is huge especially on this map which is very CPU dependant.