On some levels, the R600 borrows technology from the Radeon X1000 series and the Xenos GPU found in the Xbox360, but there is plenty of new technology employed in this GPU as well. The R600 has a new command processor that processes command streams from the graphics driver and can reduce overhead by as much as 30%. There is also a new setup engine that more efficiently prepares data for processing by the stream processing units. Also, there are 320 Stream Processing Units, beefed up texture units and render back-ends, or ROPs if you prefer.



Link: HotHardware