[THG]AMD's Ryzen 3000 Boost-Fixing BIOS Leaks Out, We Test With Ryzen 9 3900X and Ryzen 7 3700X
AMD's unreleased firmware, which the company says will fix the boost behavior of its Ryzen 3000 processors, has leaked onto the Chiphell forums. We grabbed the download and did a round of testing to see if the new BIOS and SMU fix the boosting behavior of the Ryzen 9 3900X and Ryzen 7 3700X processors.
We have to caution, however, that this is a leaked beta BIOS revision that may not be in its final state, so we'll have to take the results with a grain of salt. In either case, we do see some improvements that fall in line with our expectations for the Ryzen 7 3700X, but we also spotted an odd performance regression with the Ryzen 9 3900X, indicating this firmware is a work in progress.
In its testing, posted in a mini-review article, Tom's Hardware observed that with AGESA 126.96.36.199ABBA, their 3700X sample was correctly hitting 4.40 GHz across the board at stock settings. With the older 188.8.131.52AB, it would touch 4.375 GHz. The Ryzen 9 3900X behaves slightly differently with this microcode. Tom's Hardware was able to raise its peak boost frequency from 4.575 GHz to 4.625 GHz (above the 4.60 GHz specification), but in certain tests such as POV-Ray and CineBench, its boost frequency decays down to 4.250 GHz. Overall, the reviewer tabulated improved performance on the chips with the new microcode. The new microcode also apparently changes the processor's thermal thresholds.
looks like the performance increase is minimal. So it appears as if people were just complaining over bread crumbs falling off their mac and cheese.
Minimal compared to their sample CPU's. Other people reported bigger discrepancies. Still, advertised boost clocks should be attained in a reasonable manner, regardless of how close it was before. It's on the box, it's a matter of principle.