Tuesday, September 17th 2024
AMD AGESA 1.2.0.2 Update Fixes Ryzen 9000 Series Inter-Core Latency Issues
According to new latest testing, the latest AGESA (AMD Generic Encapsulated Software Architecture) update, version 1.2.0.2, promises a significant boost in performance for AMD Ryzen 9000 "Zen 5" processors. This update is targeting one of the most crucial aspects of multi-core processing: inter-core latency. The AGESA 1.2.0.2 update addresses challenges initially reported in AMD's Zen 5 architecture, particularly in scenarios demanding rapid communication between multiple cores. Early reports suggest a remarkable reduction in inter-core latency by up to 58%. According to Overclock.net testing, older AGESA 1.2.0.1A showed the cross-CCD latency at around 180 ns. However, with the new AGESA 1.2.0.2 BIOS, the latency is seemingly around 75 ns.
Interestingly, the update has arrived on the ASUS ROG Crosshair X670E motherboard, with BIOS version 2401. BIOS updates with the latest AGESA 1.2.0.2 are still rolling out, so it will be interesting to see further testing and possible improvements. It could be that the cross-CCD latency has just been reported badly, so final testing will conclude the latency increase from Zen 4 to Zen 5 debate.
Sources:
Overclock.net, via VideoCardz
Interestingly, the update has arrived on the ASUS ROG Crosshair X670E motherboard, with BIOS version 2401. BIOS updates with the latest AGESA 1.2.0.2 are still rolling out, so it will be interesting to see further testing and possible improvements. It could be that the cross-CCD latency has just been reported badly, so final testing will conclude the latency increase from Zen 4 to Zen 5 debate.
46 Comments on AMD AGESA 1.2.0.2 Update Fixes Ryzen 9000 Series Inter-Core Latency Issues
I guess this fix is improving those numbers too.
The 80-90ns for Zen 4 based Threadrippes is already normal and in line with Zen 4 based dual-CCD Ryzen models.
At some point 9700X will have all this stuff out and drop in price a bit and be far more interesting, maybe by end of year.
It's a case of people looking at the wrong product for their needs.Little performance gain for like nearly double TDP is so dumb.
Intel: Releases suicidal CPUs only to nerf them after all the reviews
AMD: Releases handicapped CPUs only to boost them after all the reviews
In the end, I would REALLY like to see some proper NEW benchmarks of intel gen 14 and amd zen5 compared side by side both with the LATEST bios and windows versions tested.
If anyone know of any such benchmarking videos/pages please reply to me here or send a PM, much appreciated!
Regardless, even with mobo "stock" settings there was very little change in gaming performance with the enforced limits in new BIOS.
And Intel claimed there was no performance impact, yet the impact is up to 10%, though it isn't so much about the performance impact, IMO, its more of the questionable reliability of any of the Intel 13th or 14th gen cpu's as Intel tried to hide the issues for over a year.
Inter CCD - cores between CCD's
Intra CCD - cores inside CCD
Inter core - cores between any cores, from same CCD or between CCD's
:roll: Or do I need my morning cofee ?
I think the gaming workload was already going on a single CCD for 9900x/9950x, same as 7900x3d/7950x3D. This means no improvement in gaming workloads also for 9900x/9950x.
Maybe small gains are expected in some highly threaded cherry picked scenarios as others pointed out, but only for for the dual CCD parts.
I expect overall in an average in 40+ games the CPU's to gain around 3% better performance due to lower core latencies. Every bit helps though and with the Win11 update adding around 4-5% more performance, this probably adding 2-3% more performance, overall that ends up at around 6-8% overall more performance than when Zen5 cpu's launched.
But can it do that to my 5700x cpu?? :)