Hello! So here's my question. I've always wondered as far as upgrading, when cramming a new card in your rig is a waste of $. I want a GTX 580, but, I'm wondering if the rest of my rig will hold it back. I have a intel quad @ 2.44ghz, 8gb of ddr2, on a ASUS P5NE-SLI board. Currently with two 8800gts 640. Any info would be a big help!
Res is 1920x1080... Same advice someone else gave me... this post posted twice for some reason... But, I was planning on building a whole new rig down the road, but I wanted to upgrade the graphics now. So, maybe I should just hold off altogether... Ole Iron Horse just ain't what she used to be...
I do see nothing wrong with buying the card now (regardless of overclock) to move into a new rig in few months, there are upcoming some interesting options for upgrade with Sandy Bridge re-release and Bulldozer.
Yes, the rest of your PC is going to bottleneck a GTX580, a LOT.
Unless you do some hefty overclocking and serious upgrading in the near future, you can do with a lot less video card. Even the 570 is more card than you need if are going to run your CPU@ 2.4ghz.
Only look at Graphics score since Physics scales with CPU and I'm comparing an OC'd i7-920, OC'd Q6600, and an underclocked Q6600. It doesn't seem many Q6600 owners overclocked the 580 though. In your case, overclocking it would be useless since the GTX 580 is right at the x8 bandwidth (or x16 on PCI 1.X) limitation.