According to sources, the upcoming RV250 is an updated version of the Radeon 8500 chip. However, given that it integrates the TV-out decoding function, the chip is smaller in size, thus reducing the production costs of both chip and graphics card manufacturers. Other features like the four-pipeline architecture and AGP 4x support remain unchanged. The difference between AGP 2x and 4x isn't that much because the CPU needs to do less work than before (with all the added features of the GPUs). Therefor, less bandwith is needed, but more is always better .