3D accelerators free the CPU of the task of rendering 3D graphics (and now transformation and lighting) but the CPU is still heavily used. It still has to calculate the 3D co-ordinates of objects and polygons and pass it along to the videocard, despite whether it's PCI or AGP. AGP just has a much larger bandwidth and has direct access to system memory so it can get the job done faster. For 2D graphics the CPU still does all the work.Originally posted by Goku7
Wait, for AGP, the Graphics pretty much run on their own, without the CPU needing to be used?
If that's the case, then AGP is definitely the way to go. If there's anyway to free up CPU resources, use it! The end result can be better multitasking performance, which goes a long way for systems running Norton System Doctor (the Stoplight Icon), or similar program that constantly bugs the CPU; and a graphically intensive game at the same time.