Quote Originally Posted by 'Terraelf',index.php?page=Thread&postID=164998#pos t164998
I had a fast dual core to begin with. I went to same speed quad core. It didn't make a lick of difference. Before I made the change, I was at 90% utilization on both of my processors. Now I am at 45-50% on all four processors. The big difference for me was when I went from 4 GB of RAM to 8 GB, which included an upgrade to 64 bit Vista. I did this because I was consistently staying topped at 100% RAM utilization. Now I am running at peak at 60% RAM utilization.

So basically... the answer to the question of would a faster CPU help me is the same as asking is your CPU staying pegged at 100% utilization at all times?
The answer to the question of would more memory help me is the same as are you consistently using 90% or more RAM at all times with regularly hitting 100%?
The answer to the question of would a better video card help me is are you getting frame rates of 60 in all your sessions? If yes, then no new card. If no, then yes a new card would be better, but the gain may be minimal depending upon the specifics.
you went dual core to quad core first, then upgraded ram from 4gigs to 8.

the OP has already gone 4 gigs to 8gigs. its a little different. this tells me he doesnt have a Memory bottleneck as much as he does a CPU bottleneck. of course, adding ram to your system would have made vista running on a quad core much faster. but that's your system, with a different bottleneck, if you will.