Overview

• The AGESA 1.2.0.2 microcode update reduces cross-CCD latency on Ryzen 9 9900X and 9950X from 180 ns to 75 ns.
• The update brings latency levels in line with the previous generation Ryzen 7000 series, improving performance in multi-threaded applications.
• User reports and benchmark tests show gains of 400-600 points in synthetic benchmarks like Cinebench R23 following the update.
• The update is currently available in beta for Asus motherboards, with other manufacturers expected to roll out their versions soon.
• The latency issue was caused by new tuning parameters in Zen 5 that did not account for synthetic benchmarks, which AMD has now reversed.