Disclaimer June 25th: The benchmark figures in this review have been superseded by our second follow-up Milan review article, where we observe improved performance figures on a production platform compared to AMD’s reference system in this piece.

SPEC - Per-Core Win for "F"-Series 75F3

A metric that is actually more interesting than isolated single-thread performance, is actually per-thread performance in a fully loaded system. This actually is a measurement and benchmark figure that would greatly interest enterprises and customers which are running software or workloads that are possibly licensed on a per-core basis, or simply workloads that require a certain level of per-thread service level agreement in terms of performance.

It’s precisely this market that AMD is trying to target with its new “F”-series of processors, and this is where the new 75F3 comes into play. With 32 cores, 4 cores per chiplet with the full 256MB of L3 cache, and a base frequency of 2.95GHz, boosting up to 4.0GHz at a default 280W TDP, is the chip is squeezing out the maximum per-core performance while still offering a massive amount of multi-threaded performance.

SPEC2017 Rate-N Estimated Per-Thread Performance (1S) 

At full load, this ends up with a massive per-thread performance leadership on the part of the 75F3, landing 45% ahead of the 7763 and 51% ahead of the Intel Xeon 8280.

It’s to be noted that limiting the thread count of the higher core-count SKUs will also result in a better per-thread performance metric, for example running a 7713 with only 32 threads will result in a SPECint2017 estimated score of 4.30 – the 75F3 still has a 16% advantage there even though its boost clock is only 8.8% higher at the peak – meaning the 75F3 is achieving higher effective frequencies. Unfortunately, we didn’t have enough time to do the same experiment on the equal 280W 7763 part.

AMD discloses that the biggest generational gains for the Milan stack is found in the lower core-count models, where for example the 7313 and the 7343 outperforms the 7282 and 7302 by 25%. Reason for this is that for example the new 7313 features double the L3 cache, and all the new CPUs are boosting higher with respectively higher TDPs, increasing to 150/190W from 120/155W, as well as landing in at +50% higher price points when comparing generation to generation.

SPEC - Single-Threaded Performance SPECjbb MultiJVM - Java Performance
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  • nonoverclock - Monday, March 15, 2021 - link

    When do we think this will be available to order? Also wondering the same about Ice Lake SP availability but seems it's hard to know for sure.
  • SarahKerrigan - Monday, March 15, 2021 - link

    Looks decent, though the price and TDP increases make it look less appealing at the high end than it otherwise would. Perks of reusing the same process for two generations, I suppose.

    Going to be a very interesting compare against Altra Max.
  • plb4333 - Monday, March 15, 2021 - link

    wouldn't even have to be compared to the 'max' necessarily. Altra without the max is still a contender.
  • Wilco1 - Sunday, March 21, 2021 - link

    Absolutely, Milan and Altra are almost exactly as fast on SPECINT (Altra wins 1S, Milan wins 2S, both by ~1%). Altra Max will give a clear answer as to whether it is better to have 128 threads or 128 cores.
  • ECC_or_GTFO - Monday, March 15, 2021 - link

    Why won't AMD let us secure boot their CPUs? There is simply no valid argument except hiding backdoors at this point.
  • JfromImaginstuff - Monday, March 15, 2021 - link

    Well most Linux distros do not do well with secure boot and that is what is running on most severe these days
  • JfromImaginstuff - Monday, March 15, 2021 - link

    *servers these days
  • Bob Todd - Tuesday, March 30, 2021 - link

    All the enterprise distros support secure boot so that isn’t really a factor (RHEL, SEL, Ubuntu, Debian, etc.). It doesn’t matter that random pet projects with 1 or 2 contributors don’t support it in this context.
  • Oxford Guy - Monday, March 15, 2021 - link

    I assume EPYC contains AMD's extra black box CPU. Can those with large-enough wallets get that functionality excised, as China reportedly did for the Zen 1 tech deal?
  • mode_13h - Wednesday, March 17, 2021 - link

    It's supposedly ARM TrustZone, right?

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