...after searching forums like crazy and not finding sufficient information,I just stuffed that HD7870 into my rig to find out. And it works(well,for me it does!) I did not run any serious benchmarks.I just installed all the games I like(or liked) and gave it a try running Afterburner to see the fps. The result : All the games return an average of above 30 fps on highest possible settings. I played : Crysis,Crysis 2(+HihgRes and DX11 packs),F.E.A.R.2,Battlefield 3,Stalker Call of Pripyat,Wolfenstein,Tomb RaiderSkyrim(+High Res patch),Batman Arkham City,Bioshock Infinite,Anno 1404,FarCry 2,FarCry Blood Dragon,Modern Warfare 3. All results achieved with Q6600 @3,00,Asus P5Q,4Gig DDR2@885,XFX 7870 oc black, Powered by a BeQuiet Stright Power 550 PSU,Games installed on Samsung 830 SSD I will not upgrade untill early 2014,I think. That Q6600 was the best piece of hardware I ever bought in terms of longlifety maybe this can be helpful to others wanting to upgrade.