Just to recap briefly, the X850 XT PE, codenamed R480, is a 16 pixel-pipeline and six vertex pipeline VPU, backed up by 256MB of GDDR3 memory. Unlike the recent X800 XL, which has been shrunk to 0.11 Micron process, this part is still based on TSMC 0.13 Micron process. However, experience has enabled ATI and TSMC to optimise the process enabling higher clock speeds to be achieved. The core is running at a new high for ATI of 540MHz, while the memory is up to 590MHz or 1.18GHz effective.



Link: TrustedReviews