while this card be amazing and can take everything I throw at it , I be a little disappointed to find out that I be unable to unlock this card . I be not able to just flip a switch and I also be not able to get the rbe method to work either . I suppose I wait too long to pull the trigger on this wonderful video card . I have hear report that they be laser off the extra shader to force people to buy the 6970 . do not let that deter you from buy a hd6950 though ! you can still overclock to 6970 clock speed while maintain stability if you do not mind the extra noise and heat inefficiency . I upgrade to this card from a hd4850 and it instantly triple my 3DMark Vantage score ~ 22000 . this card do fit in a NZXT gamma ! i5-2500k @ 4.2 GHz cm hyper 212 + hd6950 @ 880\/1375 NZXT Gamma OCZ ModXStream 600W PSU 8GB Corsair Vengeance RAM ASUS P8Z68-V LE