Stories
Slash Boxes
Comments

SoylentNews is people

posted by martyb on Monday March 15 2021, @11:06PM   Printer-friendly

AMD Unveils EPYC 'Milan' 7003 CPUs, Zen 3 Comes to 64-Core Server Chips

AMD unveiled its EPYC 7003 'Milan' processors today, claiming that the chips, which bring the company's powerful Zen 3 architecture to the server market for the first time, take the lead as the world's fastest server processor with its flagship 64-core 128-thread EPYC 7763. Like the rest of the Milan lineup, this chip comes fabbed on the 7nm process and is drop-in compatible with existing servers. AMD claims it brings up to twice the performance of Intel's competing Xeon Cascade Lake Refresh chips in HPC, Cloud, and enterprise workloads, all while offering a vastly better price-to-performance ratio.

Milan's agility lies in the Zen 3 architecture and its chiplet-based design. This microarchitecture brings many of the same benefits that we've seen with AMD's Ryzen 5000 series chips that dominate the desktop PC market, like a 19% increase in IPC and a larger unified L3 cache. Those attributes, among others, help improve AMD's standing against Intel's venerable Xeon lineup in key areas, like single-threaded work, and offer a more refined performance profile across a broader spate of applications.

One interesting new SKU is the EPYC 7663, a 56-core, 112-thread CPU with 7 working cores on each of the 8-core chiplets. There is also a 28-core EPYC 7453.

Next up, Zen 4 "Genoa".

Also at AnandTech, The Next Platform, Phoronix, and Ars Technica.

See also: The Tour of Italy with EPYC Milan: Interview with AMD's Forrest Norrod
AMD video announcement (51m4s) and recap (10m43s)


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 0) by Anonymous Coward on Wednesday March 17 2021, @01:52AM (2 children)

    by Anonymous Coward on Wednesday March 17 2021, @01:52AM (#1125177)

    Why do servers have so many cores, memory channels and pci lanes, but lower clock speeds? IOW, why are server CPUs and boards designed the way they are in comparison to desktop boards and CPUs?

  • (Score: 2) by takyon on Wednesday March 17 2021, @05:56AM (1 child)

    by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Wednesday March 17 2021, @05:56AM (#1125258) Journal

    Here are some potential reasons:

    • They want better reliability and uptime than the home user.
    • Lower cooling costs for multiple servers in one room.
    • They want to utilize all cores as much as possible, so clock speeds will necessarily be less. Not only because of the heat density of 32-64 active cores vs. 6, 8, 16 cores, but because the clock speeds will be sustained.
    • Applications running on workstation/servers might run 24/7, whereas a home user is idling the system most of the time but benefits from short burst speeds that shave seconds or milliseconds off of tasks, improving responsiveness of the system.

    There are CPUs in the lineup that clock higher, like the 32-core EPYC 75F3, or the EPYC 72F3, an expensive 8-core with only 1 working core per chiplet.

    --
    [SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
    • (Score: 0) by Anonymous Coward on Wednesday March 17 2021, @09:07PM

      by Anonymous Coward on Wednesday March 17 2021, @09:07PM (#1125529)

      cool, thanks