|You probably know CapFrameX from his activity in our forums as well as the utility, he concluded that after installing the Agesa Combo V2 22.214.171.124 update that he is noticing improvements to the latencies of the Ryzen 3000 and Ryzen 4000G chips.
So to make things a bit more precise, I am talking about inter-core latency and not inter-die latency. If this is true, then Ryzen chips should also benefit from it. A quick test confirms that with version 126.96.36.199 the latency was 56.9 nanoseconds; with version 188.8.131.52; this has dropped to 48.9 ns, a 14% differential in favor of the new AGESA revision. Other forum reports also come back with results on say an 'un-optimized' Ryzen 3950X system with improvements of 3 to 7%.
It's all a little relative and speculative right now, but it looks like installing the latest Agesa firmware based bios update might be worth it. Others also noted, the maximum boost clock of the 3950X is more feasible after the update, it was able to clock up to 4.7 GHz to 4.75 GHz more often.