how awesome crossfire is,just upgraded from 2 dirt 3 6950's,went to 2-HD7870 DirectCU II V2 Radeon HD 7870 GHz Edition 2GB's,worked awesome,then we had a sale here at the store i deal with,for $43 more,i returned them and got 2-HIS 7950 iceQ X² boost clock 3GB cards.As always,crossfire works llike a charm.currently on 13.4 drivers and 13.5 cap1.
Now you just need to update your signature But yea the HD 7000 series is amazing. When I "upgraded" from my 5970 to this 7970 I didn't really notice that much gain FPS wise out of it, mostly because I was already getting 60FPS in most of my games, but the noise reduction was absolutely stunning (my 5970 was a reference edition), almost the same as when I replaced my Xigmatek HDT-S1283 which I had since my Athlon64 X2 6000+ Windsor (the last great AMD processor for a long time IMO), with a Delta jet engine with this Corsair H60 with two Cougar CF-V12HPB fans. I would highly recommend that anyone who has a HD 5000 series card or previous to go ahead and upgrade, especially with the recent price cuts.
Now try Catalyst 13.8 beta 2 and see how much better and smoother your crossfirex set up works, the difference is HUGE!!!!
I was ready to sell my 7870's and move to the green team due to the horrific micro stutter whenever fps dropped lower than 50 fps and totally regretted going crossfire, these drivers changed my mind and lowered my cpu usage a good chunk also.
2 x Asus Directcu2 7870,16gb Corsair vengeance,Gigabyte Z77X D3H,Intel 3570k @ 4.3 ghz,Corsair TX850m
I'll wait til the 13.8's are out of beta,however I have never had/noticed any microstutter with crossfire to date with the games I play.I did have to return the 7950's due to a temp job loss,but the time i had with the crossfired 7870's and 7950's I never noticed any stutter at all.
now I'm back with my 6950's and still none.happy all around either way.