d6bmg
BMG ftw!!
Got my HD 7950. Didnt oc yet. But as most reviews says it can oc to 1100mhz and at that speed its 10% faster than 7970 and gtx 680 for 5-6k less money. It can give enough frame rates on full hd display. Played dirt 3 and it was over 80 fps all the time !!! Quite happy with it.
And ya I updated my Win 7 experience index and it is like this:
CPU: 7.9/7.9
RAM: 7.8/7.9
Graphics: 7.9/7.9
Gaming Graphics : 7.9/7.9
HDD: 5.9/7.9.
Will buy a OcZ VERTEX 3 SSD and oc ram a little to get perfect 7.9/7.9 on all.
Don't worry about Windows experience Index too much. Its a gimmick, nothing more.