I buy this card from Newegg when they have it on sale for $ 200 . the reason I choose it over a ASUS topius 560tus be : 1 . I hear a lot about unlock it to 6970 and 2 . it have 2g memory , but after use it for a few day , I start to regret my choice . the first thing I want to mention be that this card can not unlock to 6970 , and yes , I be 100 % sure of that . this be not a big issue though , after all , unlock would just give a roughly 5 % performance boost . secondly , this card will not overlock to the clock speed I want . Trixx be the only utility I find that could let you tune the core voltage of this card -lrb- try MSI AB , Asus GPU tweak -rrb- , but the limit be set at 1.18 v -lrb- 1.1 v default -rrb- . with 1.18 v core voltage , I can only overclock the core speed to around 920mhz -lrb- 820mhz default -rrb- with memory at 1400mhz -lrb- 1250 default -rrb- . it would crash if I increase the number . if I could choose again , I would definitely add 50 + buck and get a hd7850 or a gtx 570 . this card do its work , but it do not really perform well enough for its price .