I'm running 2 x GTX590 cards but considering moving to the AMD V5900 because Parellels Workstation Extreme can dedicate a GPU to individual virtual machines, something I will really benifit from. I use WMware workstation right now but if everything works out I be moving to Parallels. Consumer GPU cards are not supported!
So how does a single or pair of V5900 compare with a GTX590 when running GPUGRID jobs?
I know Nvidia has reduced the Double Precision performance in their 6xx GPUs in favour of their high priced pro cards. But ATI seem to be giving more DP for $$ and their FirePro cards even more over their consumer GPU cards.
My Asus P9X79 Deluxe can cater for two GTX590 cards but 4 x V5900 GPUs :-)
There are also other positives, like less power consumption...lower heat levels...less noise, also no venting of heat inside the case.