What are the main aspects of a Video Card; Clock rate (MHz) Bandwidth (GB/s), MBs.?

What are the main aspects of a Video Card; Clock rate (MHz) Bandwidth (GB/s), MBs? What is the best video card that I could get for around $350. I was considering a XFX PVT80GGHD4 GeForce 8800GTS XXX 320MB 320-bit GDDR3 PCI Express.



Thank You|||clock rate and bandwidth aren't so useful as video card-choice parameter. you'd better look at the card ram's MBs.|||I would say which GPU family is used and the amount of memory. I would not get less than 256mb. Nvidia cards are an excellent choice.



Interface is something to consider. AGP is better than PCI, but PCI-Express is even better if you have a card which supports it well. PCI-Express is about like an interstate highway - only faster if you have a decent enough vehicle. A bicycle won't make better time on the interstate. So a faster interface won't help unless you have a decent enough GPU to really take advantage of that.|||I think the pixel shaders and mb-s