actually this sites review of the amd vs nvidia is correct... only firestrike extreme "removes" the Influence of the cpu why?... i have a 8350 cpu, when i compare the scores on this web site to my own, the physics score of this web site test platform is around 16500, whereas for the fx8350 about 8900. thus the xblitlabs platform has a faster cpu, but it does not affect the firestorm extreme benchmark.
which means my score is higher than xbitlabs on firestrike extreme because my gpu (zotac 680 amp!) (1240/7000) is faster... BUT only on that benchmark because the other benchmarks (cloud gate, icestorm ) the cpu affects the score.
my scores for the benchmarks are : (i am using the asus for comparasion because it is closest to my card... you will notice that all of the benchmarks except for firestrike extreme are faster than my setup (fx8350, zotac 680 amp!)
AMD icestorm xbitlabs :amd 7970 (166983) my 7970 (115926)
http://www.3dmark.com/is/275520
NVIDIA icestorm xbitlabs gtx680 (165605) my gtx680 (124476)
http://www.3dmark.com/is/269064
AMD firestrike extreme xbitlabs :amd 7970 (3558) my 7970 (3592)
http://www.3dmark.com/is/256103
NVIDIA firestrike extreme xbitlabs gtx680 (3363) my gtx680 (3588)
http://www.3dmark.com/is/247884
the point I am making is not that one is faster than the other but that the firestrike extreme compares graphics cards only (cpu does not affect the score) ... but does it mean anything?, well it is a benchmark...