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AMD Ryzen 7000 Zen 4 CPUs Enter Pre-Production Stage of Development

Zen 4
(Image credit: AMD)

As reported by @BenchLeaks on Twitter, it looks as though AMD's first pre-production version of its upcoming Zen 4 CPUs has made its way onto a MilkyWay@Home spec sheet. This new information is complete with CPU family, model, and stepping name. In addition, some specifications, such as core count and cache sizes, indicate that Zen 4 is close to completion.

According to BenchLeaks, this particular chip reads as Stepping 1, indicating that it is one of AMD's first production models featuring the Zen 4 architecture that we have seen. Previous Zen 4 leaks, for example, have shown engineering samples with a stepping of 96. However, this new chip is still listed as an engineering sample, so we can presume it is still a pre-production model that is not ready for the consumer market.

Nonetheless, if this is true, AMD is making steady progress on its Zen 4 architecture and has entered the final stages of development. Unfortunately, the rest of Milky Way @ Home's listed specs are vague, particularly regarding the cache which is listed as a measly 1024KB of capacity. 

Obviously, this should be the L2 cache since current Zen 2 and Zen 3 chips all have L3 cache sizes beyond 1MB. But for the L2, this is a substantial upgrade over AMD's current Zen 3 chips, such as the Ryzen 9 5950X, which only has 512KB.

MilkyWay@Home labels the core count as processor units, so we believe it includes the thread count of the entire CPU. If true, this would make this Zen 4 chip an 8-core pre-production sample with SMT enabled.

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AMD's Zen 4 architecture should arrive sometime in the second half of 2022 under the Ryzen 7000 name. These new chips will be the first generation to run on AMD's brand new LGA AM5 socket featuring PCIe Gen 5 support.

We don't know much about AMD's new architecture just yet, but it'll be based on TSMC's new N5 process (5nm), which promises a 30% power reduction or a 15% performance improvement compared to AMD's Ryzen 5000 CPUs packing TSMC's 7nm process. 

Clock speeds appear to be taking a serious jump as well, with boost frequencies expected to surpass the 5GHz barrier. This was made known by a recent AMD demo showcasing a Zen 4 CPU running at just over 5GHz on all cores while running Halo Infinite.

Aaron Klotz
Aaron Klotz

Aaron Klotz is a freelance writer for Tom’s Hardware US, covering news topics related to computer hardware such as CPUs, and graphics cards.

  • ingtar33
    well zen3 was already 10-15% faster then intel 12th gen clock for clock. change that number to a 25% advantage clock for clock and ramp up the clock speeds to intel speeds and zen4 will bury 12th gen.
    Reply
  • peterf28
    I was waiting for 11 years to find a decent successor for my i5-2500K@4.8 which is still rooolling strong. Maybe this will be it.
    Reply
  • henrytowns
    peterf28 said:
    I was waiting for 11 years to find a decent successor for my i5-2500K@4.8 which is still rooolling strong. Maybe this will be it.
    Lol, how's it working for you with just four threads?
    I couldn't even run discord as it would utilize an entire thread and gaming was affected.
    I had it for 2011-2018 but games started to run too poorly since 2016. Upgraded to 2700x in 2018 and all has been fine. I will upgrade next year.
    Reply
  • peterf28
    henrytowns said:
    Lol, how's it working for you with just four threads?
    I couldn't even run discord as it would utilize an entire thread and gaming was affected.
    I had it for 2011-2018 but games started to run too poorly since 2016. Upgraded to 2700x in 2018 and all has been fine. I will upgrade next year.
    Did you have it overclocked? Did you use 2133mhz 16gb ram? I don't run anything in the background when gaming, because it can cause FPS stutter. I can run everything including newest AAA games at 50-75 FPS, that is my freesync range, 1070TI.
    Reply
  • KyaraM
    ingtar33 said:
    well zen3 was already 10-15% faster then intel 12th gen clock for clock. change that number to a 25% advantage clock for clock and ramp up the clock speeds to intel speeds and zen4 will bury 12th gen.
    Worthless comparison. This has to be compared to Raptor Lake, not Alder Lake.
    Reply
  • goldenfri
    Came here to say I'm also still running my i5-2500K. Will probably finally upgrade once Zen 4 is released.
    Reply
  • hannibal
    Zen4 should be a good option. Most likely again longer socket support than what Intel gives. Not as long as (AM4, because it did cause some problems to have support that long...), but in anyway option to improve if needed. Also because Zen4 is purely optimized to DDR5 instead of having both, it can have edge in the size of memory controller compared to Intel.
    And also nice to see Apples to Apples comparison when both companies use same memory option again ;)
    Reply