Quote Originally Posted by Mumak View Post
MilkyWay@Home requires double-precision, so it performs well if you have a higher-end GPU (like Radeon HD 79xx). On such GPUs you can complete a WU under 1 minute. Lower models are running DP at a considerably reduced clock, so the performance is relatively weak.
Any ATI 58xx or 69xx card will work well on MW@H as they are DP capable.