i think the XT uses more aggressive CAS timings on the ram, which strains the ram more, but also gives u more performance. apart from that, i dont think there is that much different.
True, but I have my 9800 Pro stable at 470/380. I just wanted to know if flashing to the XT Bios would afford me better performance. If better CAS/tRAS/tRCD/tRP timings are what I have to gain by flashing to XT, then it's not worth it to me since I'd likely take a hit in memory clock speed overclockability. I'm guessing that it would negatively affect my overall card performance.