Intel 14th-Gen BIOS Update DESTROYS Multicore Performance (Up to 23%)

Intel 14th-gen Stability BIOS Update Severely Impacts Multicore Performance A recent BIOS update (microcode 0x129) designed to address stability issues and performance degradation in Intel's 13th- and 14th-gen CPUs has resulted in a significant multicore performance hit, contrary to Intel's claims. Performance Degradation: Tests conducted by PC Guide on an Intel Core i9-14900K with an Asus Maximum Z790 motherboard showed a 22-23% drop in multicore performance after the BIOS update. Cinebench scores plummeted by 22.9%, while Blender rendering performance also suffered a 22% decline. Gaming Performance Unaffected: Fortunately, gaming performance remained consistent before and after the update, with no noticeable FPS drops in games like Counter-Strike 2, Cyberpunk 2077, and Days Gone. Possible Cause: While the exact cause is unclear, it appears that Intel's Thermal Velocity Boost (TVB) may not be functioning correctly after the update. Tests revealed lower CPU clock speeds and higher …