pci bandwidth is 133mbps. That means it can transfer 133MB of data per second. Now to have 60fps, each frame should not have a size more than 133/60MB = 2.216MB. An image @ 1280 * 1024 resolution can't be greater than 2.216MB. Then why pci cards are low on performances, i have heard newer games run like a slideshow on them, that's why i have stopped my search for a pci graphics card with 256MB ram. Pl tell me where i am wrong?