How to determine which component will cause a bottleneck?
I have a system with a Pentium 4 at 2.4 Ghz, and I'm assuming that the P4 would be the component to cause a bottleneck. I've maxed out the RAM at 2 GiB (it's DDR 533 Mhz I believe). Anyways, I'm trying to get it to do some (moderate) 3D gaming. So I'm wondering, if I were to buy an AGP ATI graphics card, would a card with only 120 stream processors result in a bottleneck with the GPU instead of the CPU? Or is the difference between 120 and 320 stream processors negligible (assuming clock speeds and VRAM are equal)? I'm not expecting to run Crysis on this rig, but I'd like it to be able to handle most modern games on low settings at least. Any input is appreciated.