AMD's next-gen Zen 4 CPU rumors: around 40% faster than Zen 3

AMD's next-gen Zen 4 architecture is coming on TSMC 5nm, will reportedly offer 25% IPC gains, 40% faster than Zen 3 - monster CPUs.

@anthony256
Published Tue, Feb 9 2021 7:28 PM CST   |   Updated Tue, Mar 16 2021 9:26 PM CDT

AMD has been making great strides between each of its Zen architectures, with the difference between Zen and Zen 2 being very noticeable -- but it was the jump from Zen 2 to Zen 3 with the recent Ryzen 5000 series CPUs that things really went up into another level.

AMD's next-gen Zen 4 CPU rumors: around 40% faster than Zen 3 03 | TweakTown.com
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But the fun isn't over, with the next-gen Zen 4 architecture in the oven and promising some truly gigantic IPC gains and overall performance uplifts over the current-gen CPUs. The new rumors are coming from ChipsandCheese, with news from AMD's next-gen server family codenamed Genoa. These new EPYC processors will be powered by the Zen 4 architecutre and will offer tremendous benefits all over the place.

The rumors tease that the current Genoa engineering samples with the identical cores and CPU clocks as the Milan EPYC processors, but the new Zen 4-powered CPUs are up to 29% faster.

  • When it comes to the Zen 4 architecture, the rumors as they are now: IPC gains of over 25% and overall performance gains of over 40% and up to 5GHz all-core clocks thanks to the next-gen 5nm tech from TSMC.

Here's what ChipsandCheese had to say:

"Zen 4 is what a lot of people are waiting for, and, if the info I have is accurate, that wait will prove to be even more worth it. It is important to note that the one common thread in all Zen 4 chatter I have heard is resounding positivity. From IPC gains over 25%, a total performance gain of 40%, and even possibly (finally) 5GHz all-core thanks to the new (full node) N5 fabrication at TSMC!"

"Now, I can't say what is true and what is an over-exaggeration, however I was told from a trusted source that a Genoa engineering sample (Zen 4 server chip) was 29% faster than a Milan (Zen 3) chip with the same core config at the same clocks. Factor this in with what I have heard about the possible clock gains that N5 will enable over N7 and Zen 4 sounds like it is going to be a monster of a CPU"

AMD's next-gen Zen 4 CPU rumors: around 40% faster than Zen 3 04 | TweakTown.com

If you thought this was just rumor level stuff, it was in November 2020 that AMD itself teased the Zen 4 architecture with AMD Executive Vice President Rick Bergman saying: "(Given) the maturity of the x86 architecture now, the answer has to be, kind of, all of the above. If you looked at our technical document on Zen 3, it was this long list of things that we did to get that 19% (IPC gain). Zen 4 is going to have a similar long list of things, where you look at everything from the caches, to the branch prediction, (to) the number of gates in the execution pipeline. Everything is scrutinized to squeeze more performance out".

"Certainly (manufacturing) process opens an additional door for us to (obtain) better performance-per-watt and so on, and we'll take advantage of that as well".

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Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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