I previously had a Radeon HD4950, as saying that the move to the GTX560 gave something big boost. The games are fluid even in maximum resolution, except perhaps some as Battlefield 2 multiplayer, but it should get better with the change of the entire motherboard memory processor in the coming days. Beware though, the driver update has caused a graphical bug, perhaps due to a hardware conflict saw my current config (?). But once more MAJ uninstalled any worries.
current config (excluding graphics): Motherboard Asus M3N-HD 7750 dual core AMD Athlon 2700MHz, 2x2GB DDR2, windows XP sp3 config come: ASRock Fatal1ty P67 Performance socket 1155 Intel core i5 2500 3.3GHz, 8GB DDR3 1333