Sunday, May 29, 2022

AMD next-gen Zen 4 CPU Is going to be huge! With rumored 15-24% faster IPC than Zen 3

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According to the newest leaks, AMD’s next-generation Zen 4 architecture is “a larger deal than Zen 3 was,” which is evident by now… Later this year, AMD will once again deliver the goods with some CPU dominance.

Tom @ Moore’s Law is Dead says in a new video that Zen 4 is being referred to as “a bigger event than Zen 3 was,” but that “it’s not expected to be quite as memorable as Zen 2.” He has “extreme confidence” in his sources, who claim that Zen 4 will have double the L2 cache per CPU core (1MB) and the same amount of L3 cache as Zen 3. (4MB per core).

AMD Zen4 MLID claims

  • 15-24% IPC Increase (Over Zen 3)
  • 8-14% Clock Increase (Over Zen 3)
  • 28-37% ST Perf Increase (Over Zen 3)
  • ST-Like or Higher MT Perf Increase (Over Zen 3)
  • 1 MB L2 / 4 MB L3 Per Core (vs 512 KB / 4 MB L3 per Zen 3 Core)
  • PCIe 5.0 Support (Increased Lanes)
  • DDR5/LPDDR5 Memory Support (DDR5-5200+)

Over Zen 3, Zen 4 includes a “huge increase” in I/O: PCIe 5.0, DDR5 + LPDDR5, additional PCIe lanes, and more. With the same threat counts and CPU clocks, AVX-512 performance is said to be “equivalent to Ice Lake-X,” but it’s 50 percent quicker than Zen 3 CPUs with the same CPU clocks.

Rumored AMD Zen4 launch schedule

  • EPYC Genoa 7004 (~Q4 2022) – A0 Silicon Taped-Out in March, B0 testing is ongoing
  • Ryzen 7000 ‘Raphael (~2H 2022) – Samples already running, production soon
  • Ryzen 7000 Dragon Range (~Q1 2023) – Sampling expected this year
  • Ryzen 7000 Phoenix (~Q1 2023) – Behind Genoa in testing
  • Threadripper 7000 Storm Peak (~1H 2023) – Planned

Now, we’re all waiting for the IPC performance increases, with Tom claiming that his sources believe we’ll see a 15-24% increase in IPC over Zen 3. Tom says that “a lot of the wild IPC claims are likely overestimating IPC and underestimating clock speeds,” and that “a lot of the more wild IPC claims are likely overestimating IPC and underestimating clock speed.

also read:

Samsung has reportedly broken through the difficulty of low yield and is Gearing towards 3nm GAA mass-production

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Nivedita Bangari
Nivedita Bangari
I am a software engineer by profession and technology is my love, learning and playing with new technologies is my passion.


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