AMD’s New EPYC 7F52 Reviewed: The F is for ᴴᴵᴳᴴ Frequency
by Dr. Ian Cutress on April 14, 2020 9:45 AM EST- Posted in
- CPUs
- AMD
- Enterprise
- Enterprise CPUs
- EPYC
- SP3r2
- CPU Frequency
- Rome
- 7Fx2
CPU Performance: Rendering and Synthetics
For the rest of our CPU tests, we’re using a mix of rendering and synthetic workloads. This is slightly different to our previous server reviews, due to some adjustments, and we hope to be running something similar to our standard server workloads in the near future.
All CPUs are run with SMT/HT enabled.
Even with the addition of a socket-to-socket in the mix, the dual 7F52 setup scores up to +100% in some benchmarks over the previous generation EPYC 7601. Against Intel’s latest 16-core Cascade Lake Refresh hardware, the AMD takes a sizeable lead in most benchmarks (except notably AVX512), which is perhaps to be expected given the price difference and power difference. What is interesting is how in certain workloads, the 2P 7F52 setup can make a reach up for the Xeon 8280s, despite the 8280s being 3x the cost each.
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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.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.
boozed - Tuesday, April 14, 2020 - link
"AMD is hoping to stag that first second rung of the ladder"What does this expression mean?
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.
boozed - Tuesday, April 14, 2020 - link
Thanks but I'm not convinced that's itSmell 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'
:-)
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 cachenicamarvin - 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 3990XMachinus - 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.Threska - Wednesday, April 15, 2020 - link
Not specifically in this niche, but ARM (and equivalent) haven't gone anywhere.