SPEC2006 and SPEC2017 (Single Thread)

Due to some limitations with our systems, we were only able to run SPEC in single thread mode in time for the review. Given that these 7F processors are meant to be the highest frequency EPYC hardware available, in single thread and multi-thread, this is still a very relevant test for the use case. Unfortunately we introduced this test late last year, after testing the bulk of our Intel CPUs. We’re currently re-running on a few and will update this post over the next few days.

*If you are seeing this as the review goes live, we are still waiting for the 6226R results to finish.

SPEC2006 1T Estimated Results
AnandTech AMD
7F52
AMD
7601
AMD
3990X
AMD
3950X
  Intel
6226R
Intel
9900KS
Intel
10980XE
uArch Rome Naples Rome Rome   CLX-R Coffee CLX
Turbo 3900 3200 4300 4700   3900 5000 4800
 
400.perlbench 45.9 29.8 50.8 54.6   40.2 60.1 55.2
401.bzip2 30.9 23.3 34.5 36.6   25.4 37.5 33.5
403.gcc 37.7 28.0 53.4 57.7   30.0 56.1 46.6
429.mcf 35.6 22.6 48.6 52.9   28.5 64.7 45.3
445.gobmk 36.7 23.4 41.8 44.9   32.0 43.3 39.6
456.hmmr 36.8 26.8 41.0 43.3   39.2 51.7 48.2
458.sjeng 32.5 21.9 38.1 41.1   34.7 47.0 43.6
462.libquantum 78.7 50.3 100.4 102.8   38.5 113.2 106.8
464.h264ref 67.7 49.6 75.9 80.4   64.7 83.9 79.1
471.omnetpp 21.1 14.0 27.5 31.9   25.5 31.3 30.0
473.astar 26.9 17.8 30.9 32.8   22.9 30.2 29.5
483.xalancbmk 46.0 29.2 53.8 58.0   37.5 60.4 54.6
 
433.milc 35.0 22.6 46.9 49.3   15.7 31.9 27.9
444.namd 39.0 29.6 43.3 45.9   38.3 52.5 43.9
450.soplex 58.9 39.7 73.7 74.8   21.5 73.0 67.1
453.povray 59.7 37.0 66.3 70.9   58.5 76.2 70.5
470.lbm 101.4 72.4 121.8 126.2   20.2 77.7 102.9
482.sphinx3 94.7 56.2 107.4 113.0   45.3 105.0 72.6
 
Geomean 44.8 30.2 53.6 57.1   32.3 56.6 51.1

The performance jump from the Naples 7601 to the Rome 7F52 is bordering on about 50%. It is worth pointing out that AMD’s consumer Ryzen 9 3950X wins out here due to IPC and single core frequency, closely followed by Intel’s i9-9900KS, the AMD Threadripper 3000s, and the Intel i9-10980XE. This comes down to consumer platforms affording much larger turbos and not being stricter on RAS requirements and such.

SPEC2017 1T Estimated Results
AnandTech AMD
7F52
AMD
7601
AMD
3990X
AMD
3950X
  Intel
6226R
Intel
9900KS
Intel
10980XE
uArch Rome Naples Rome Rome   CLX-R Coffee CLX
Turbo 3900 3200 4300 4700   3900 5000 4800
 
500.perlbench_r 4.3 2.7 5.0 5.3   5.1 6.9 6.3
502.gcc_r 6.1 4.4 8.0 8.6   3.8 9.3 7.4
505.mcf_r 5.0 3.5 6.1 6.6   3.2 6.5 5.4
520.omnetpp_r 2.4 2.0 3.4 3.7   3.1 4.1 3.8
523.xalancbmk_r 4.7 2.5 5.0 5.3   4.0 4.4 5.3
525.x264_r 7.8 5.7 9.0 9.5   6.8 9.7 9.0
531.deepsjeng_r 3.7 3.0 4.4 4.7   4.0 5.5 5.0
541.leela_r 4.1 2.9 4.6 4.9   3.7 5.0 4.6
548.exchange2_r 7.3 4.5 8.2 8.7   6.2 8.3 7.5
557.xz_r 3.0 2.1 3.8 4.1   2.9 4.1 3.8
 
503.bwaves_r 39.7 27.4 46.5 48.5   7.4 38.2 30.6
507.cactuBSSN_r 5.6 4.2 6.4 6.7   4.3 8.3 6.1
508.namd_r 6.0 4.6 6.7 7.0   4.1 7.4 6.3
510.parest_r 7.5 5.5 8.4 9.0   4.4 9.7 7.4
511.povray_r 6.7 4.2 7.5 7.9   6.6 8.7 8.0
519.lbm_r 6.9 5.0 8.0 8.4   1.0 7.7 6.3
521.wrf_r * - - - -   - - -
526.blender_r 6.6 4.7 7.5 8.0   5.2 7.9 7.2
527.cam4_r 6.8 4.8 7.7 8.2   4.8 8.3 6.4
538.imagick_r 7.9 5.8 8.8 9.4   6.4 8.5 7.8
544.nab_r 4.0 3.0 4.4 4.7   3.0 5.2 4.7
549.fotonik_r 14.2 8.1 17.2 16.4   3.5 14.8 11.4
554.roms_r 9.0 5.3 10.9 11.4   3.8 10.0 7.3
 
Geomean 6.3 4.3 7.3 7.7   4.1 7.8 6.8
*512.wrf_r unfortunately doesn't run properly in our SPEC harness at this time

We see a similar result in the newer version of SPEC, again with ~50% jump from the Naples 7601 to the Rome 7F52. The 9900KS has the overall better Geomean here, followed closely behind by the 3950X, then the Threadrippers.

Frequency Ramp, Latency and Power CPU Performance: Rendering and Synthetics
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  • pepoluan - Tuesday, April 14, 2020 - link

    It takes time for Enterprise market to switch over. They have to validate, re-validate, and validate some more to ensure that their bread-and-butter applications run without any hiccups. They would rather limp along on much less efficient systems that work properly, than running efficient systems that has stability problems. (Not saying that AMD Rome has stability problems, it's just that Enterprises want *proof* of stability, that's why they validate extensively.)

    Plus they like to use their systems until its economic lifetime passes (about 3-5 years).

    Nearing the end of 2020, we might see a sudden, major uptick in AMD server market share.
    Reply
  • beginning - Tuesday, April 14, 2020 - link

    Thank you for this review! Quite useful. I would like to see performance comparisons on multi-threaded workloads too. Reply
  • anonomouse - Tuesday, April 14, 2020 - link

    Looking at memory latency chart, it doesn't look like the second half of the LLC is actually any farther - that's just the limit of the range that the L2 TLB (2K entries @4K pages) can cover. The additional latency beyond 8MB is probably because requests are now causing table walks, and that is also clear from Andrei's corresponding chart for the client version in 3700x/3900x. Were these results cross-checked with each other before publication?

    One way to verify this would be to enable huge pages and see if the memory latency profile you're claiming looks different.
    Reply
  • boozed - Tuesday, April 14, 2020 - link

    "AMD is hoping to stag that first second rung of the ladder"
    What does this expression mean?
    Reply
  • UnknownKnolwdge - Tuesday, April 14, 2020 - link

    Look up ladder logic on wikipedia, search for rung.

    It's associated with relay logic and old style PLC programming.
    Reply
  • boozed - Tuesday, April 14, 2020 - link

    Thanks but I'm not convinced that's it Reply
  • Smell This - Wednesday, April 15, 2020 - link

    "AMD is hoping to stag that first second rung of the ladder."
    ________________________________________________

    Two things:
    1) I suspect the meaning is 'the next step up;' and
    2) 'snag' instead of 'stag'

    :-)
    Reply
  • madwolfchin - Tuesday, April 14, 2020 - link

    This processor should be targeted for Single threaded workload, why are all the benchmark multi threaded. Would also like to see the IPC performance since there is a large increase of cache Reply
  • nicamarvin - Wednesday, April 15, 2020 - link

    Mr. Cutress on this article you have the 3950X and 3990X as "Rome" uArch, but in Fact they are Matisse for 3950X and Castle Peak for the 3990X Reply
  • Machinus - Wednesday, April 15, 2020 - link

    I wish there was more than one CPU maker in the market right now. These chips looks great, but there is no competition. Reply

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