I have Rage3D tweaker installed and have confirmed the clock speed as being 418mhz when OD enabled and 412 when disabled. My real XT commonly hits 70 degrees while so far the 9800 Pro modded to XT is running at 65 max temp under load with OD enabled. Overdrive is obviously working on the newly modded 9800XT but is showing the new card as running nearly 5 degrees Celcius cooler then my real XT does. When I noticed the PCB were the same I wondered if a simple BIOS hack would free my XT from Pro shackles! YEEHAA! SWEET!!!! I knew I had struck gold when I bought my Sapphire 9800 Pro 256mb recently and noticed that the core said "R360" on it and started comparing it to my 9800XT I had in my main rig. IT WORKS!!! WOOHOO!! Sorry, just got enthused when I tried it and everything went exactly as in the article.
#Radeon 9800 pro 128mb mod#
Either way, to increase o/cability, a vGPU mod ought to be done as well. The R360 scores have a vGPU of 1.8v or was it 1.75v. Oh and one thing else, from memory the R350 cores had a default vGPU of 1.7v. Anyone who benchmarks regularly will state how artifacts can both decrease and increase scores. My theory is, on the old core, with the BIOS flash, those optimisations were being called by the different programs (games, benchmarks etc) which resulted in artifacts and artificially increased the scores. a 9800Pro at the same clockspeeds, the 9800XT will win clock for clock due to these optimisations. It is no secret that the R360 core has certain shader optimisations over the 9800Pro.
#Radeon 9800 pro 128mb drivers#
Using the Omega drivers (v2.5.22 onwards) which has a fix for such mods, the scores all go back to normal pre-modded levels. This is different from the older 9800Pro (R350 core) -> 9800XT BIOS mods where people "claimed" an increase in performance due to the mod which was more than likely due to artifacts appearing in 3DMark03. These can also be modded to a 9800XT 128MB using the hacked BIOSes found here with no artifacting issues. Small thing to note, the R360 core is appearing now quite frequently in 9800Pro 128MB pieces.
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