The ATI 300 will support DirectX 9.0, will have as many as 107 million transistors, and have eight pipes with 16 textures. It will include 4 vertex shader engines, and use 256-bit DDR memory, and use a technology called HyperZ III.
We also expect that the R300 will support AGP8X, be out before Direct X9.0 and support it, include both MPEG 2 encoding and decoding, video acceleration and the rest.