To get proper FPS, do I need to re-install video card after upgrade of CPU?

No gaming. Just video. Memory core speed at 270. Specs say 800. If I re-install video card, will it see the new CPU and re-adjust memory core speed? Old CPU 2.53 Celeron-D New CPU 2.8 P4 Northwood|||you shouldn't have to.|||Urg... you probably upgraded to a CPU that's not compatible with your motherboard.|||update the video card driver.