User of ASUS and Gigabyte motherboards (maybe others as well) may be affected by a PCI Express x1 bug which causes a tremendous drop in performance. ChampionLLY takes a look at the motherboards and graphics cards affected by this problem and what solutions work, and what doesn't.
In the second part, he takes a look at the effect that PCI Express x1 bug has on the performance of your system. The results will shock you.
Here's a quote from the article :-
"Crysis enjoyed a 223% increase in framerate, as it is a very GPU intensive game, especially with the High settings and high resolution."