I buy this on 8\/15 I try it in 3 separate machine and have problem with it . the display would randomly decay into video noise on all 3 machine . before that anamoly begin though I play ac 2 , Crysis 2 and Open sim . it be pretty good with ac 2 and crysis 2 but Open sim be open gl and atus 's opengl be lackluster , buggy and slow . this card on open sim be no faster than my old nvidium gtx 9800m and far more crashier . I return the card as defective . Hope this help