AMD Zen 5 CPU leak shows 40% 'core for core' performance uplift - but let's not get excited yet

Zen 5 is set to be 40% faster than current Ryzen 7000 processors? That's the latest lofty expectation for AMD's next-gen CPUs raised via the rumor mill.

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If you heard that AMD's next-gen Zen 5 processors were going to be 40% faster than current Ryzen 7000 models, you'd have a hard time believing it, right?

Well, this is the claim made by a fresh piece of spillage from the rumor mill, and it's something we need to dig into a little.

The speculation emerged over at the Anandtech forums, as 3D Center flagged up on X (formerly Twitter), where well-known leaker Kepler told us: "Core for core Zen5 is >40% faster than Zen4 in SPEC."

Apparently, sample Zen 5 silicon is performing to the tune of 40% quicker as a generational leap in the aggregate SPEC benchmark score.

So, does that point to an IPC increase of 40% gen-on-gen? Well, not exactly, as clock speeds could come into play with the Zen 5 CPUs too (though arguably, the available extra mileage for additional frequency gains with next-gen Ryzen could be thin on the ground).

On top of that, while this is clearly an eye-opening figure to mention - and we should take it with plenty of seasoning - we do also have to bear in mind that even if it's true, this is just a single benchmark.

Caution is certainly required bearing that in mind, and that all the other leaks around Zen 5 up until now have suggested a lower generational jump - more in the area of 15% to 20%, although more like a 30% gen-on-gen performance increase has been mentioned too.

This latest leak even outstrips the latter optimistic scenarios that have been floated before, so again, we'll need to see more evidence of a major stride forward with Zen 5 before we're even remotely convinced about this kind of talk.

Read more: AMD Zen 5 CPUs may not debut until late in 2024 - could Intel's Arrow Lake even arrive first?

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Darren has written for numerous magazines and websites in the technology world for almost 30 years, including TechRadar, PC Gamer, Eurogamer, Computeractive, and many more. He worked on his first magazine (PC Home) long before Google and most of the rest of the web existed. In his spare time, he can be found gaming, going to the gym, and writing books (his debut novel – ‘I Know What You Did Last Supper’ – was published by Hachette UK in 2013).

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