Updated | Zen 5 performance gain to be >40% "core for core" vs Zen 4 as IPC uplift in games and synthetic benchmarks leaks

Update

@All_The_Watts has revealed on X that the Zen 5 IPC figures are an April Fool's joke which is very unfortunate since the leak was posted on March 31. Interestingly, the leaker has advised people to "wait till June for official figures" which are allegedly "even higher than this".

Fortunately, @Kepler_L2's leak isn't part of any April Fool's shenanigans.

The original article continues down below.

Over the past months, we have heard a lot of claims regarding the performance of the next-generation AMD Zen 5 architecture. For instance, we heard back in February that Zen 5 could end up with a magnificent 40% IPC uplift over Zen 4. We now have additional Zen 5 performance claims from leakers @Kepler_L2 and @All_The_Watts.

Starting with the @Kepler_L2’s report, the leaker suggests on Anandtech forums that ”Core for core Zen5 is >40% faster than Zen4 in SPEC”. If true, this performance delta puts Zen 5 far ahead of both Zen 4 and Intel’s 14th-gen Raptor Lake Refresh. However, it remains to be seen how well Zen 5 fares against Arrow Lake as the rumor mill has put forth a 25% single-core and up to a 40% increase in multi-core performance for the latter vs Raptor Lake in the past.

According to Zen 5 IPC numbers from @All_The_Watts, the Ryzen 9000 CPUs could see the following IPC uplifts:

• 7% in Fortnite
• 11% in Passmark
• 20% in the Cinebench R23 single-core
• 28% in 7-zip
• 33% in V-Ray CPU
• 38% in Metro Exodus
• 71% in Dolphin Bench
• 86% in WPrime

On average, Zen 5 IPC gain could lie in the 30% range.

The report of only 20% IPC in Cinebench R23 single-core is contrary to a previous leak of >=2800 points in the Cinebench R23 single-threaded benchmark. Furthermore, as suggested by some users in replies to @All_The_Watts’ claim, the massive increases of 71% and 86% in Dolphin Bench and WPrime appear to be with the AVX-512 instruction set. Since AVX-512 only accelerates certain workloads such as machine learning, video processing, 3D modeling, etc, don’t expect such big performance gains in applications that lack support for AVX-512.

Finally, the leaker mentions that the Zen 5 performance figures listed above are “subject to re-testing before announcement” which means the numbers could look quite different upon release.

All in all, these latest Zen 5 leaks paint quite an exciting picture for Team Red’s upcoming CPUs. But, as history has taught us, never take leaks of such nature at face value.

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