Strix Point APU Latency Fix: AMD Releases BIOS Update for Ryzen AI 9 Processors (365, 370, 375)

AMD, in collaboration with ASUS, has addressed the high inter-core latency problems affecting its Strix Point APUs (Ryzen AI 9 365, 370, and 375). A BIOS update significantly reduces latency, resulting in noticeable performance improvements. The complex die design of Zen 5 chips, combining Zen 5 and Zen 5c core clusters, led to excessive latency between the different core types, impacting multi-threaded performance. While a similar issue with desktop Ryzen 9000 processors was resolved earlier, the Strix Point APUs continued to suffer from this problem. As shown in the leaked table, typical inter-core latency between Zen 5 and Zen 5c cores ranged from 160-180 ns. The experimental BIOS update drastically reduces this to 60-70 ns, a substantial improvement. While the latency between different core types remains higher than within the same core type (Zen 5 to Zen 5 or Zen 5c to Zen 5c), this fix will still significantly benefit multi-threaded workloads. The ASUS TUF Gaming Air 2024 is the fi…