I have a 20" monitor 600watt psp 2.6gig quad core cpu vista ultimate 64 bit i am at the moment using the 9800gt and its okay apart from driver roll offs quite often which i think may come down to the 64bit not too sure tho but it has failed and is being replaced its is under warranty and i could get the gtx260 insted but is this a better gpu or should i stick with the same 1