17.11.2020., 20:58
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#8854
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McG
Datum registracije: Feb 2014
Lokacija: Varaždin
Postovi: 8,563
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Intel claims 32-Core Ice Lake-SP Xeon CPU crushes 64-Core AMD EPYC in these specific workloads
Citiraj:
At Intel Architecture Day 2020 we got more details about both Ice Lake Xeon and Sapphire Rapids. Intel is starting to discuss Sapphire Rapids more in its materials. As the roadmap stands, Ice Lake will be a shorter duration generation with a single chip in the Whitley platform. Sapphire Rapids has new extensions, new memory capabilities, and CXL/ PCIe Gen5. We discussed the 2021 Ice Pickle where Ice Lake is getting its time on the market compressed by Sapphire. Still, Intel has its Ice Lake generation coming out in 2021. Early launch activities have already started before the public release. We get parity with modern Arm and AMD platforms with eight-channel DDR4, new microarchitecture, PCIe Gen4. We checked the performance footnotes. Intel is comparing a pre-production 32 core Ice Lake Xeon to AMD EPYC 7742 64-core part and seeing 20-30% performance uplift. This is impressive, but given AVX512 it is what we may expect here.
Citiraj:
- Of course, there are a few notes. First, the AMD EPYC 7742 is a 2019 part. AMD has been in volume production with the EPYC 7003 “Milan” series since September 2020 and has been shipping to major cloud providers.
- These are not ES shipments, these are full volume production. We will get the marketing release for non-HPC/ cloud customers but:
- Milan is already out which makes this Intel comparing a pre-production 2021 part to a previous-generation AMD part
- Intel is using Intel MKL in these benchmarks which does not have the best history of being vendor-neutral in its implementation. Milan will have higher TDPs just like Ice Lake.
- Claiming a 20-30% performance uplift over older generation parts on HPC-specific workloads is not exactly a win given we have some sense of how Ice Lake will perform compared to EPYC in non-HPC workloads.
- With a 18% uplift in IPC for SPECcpu2017 with Sunny Cove, we expect that for many of these non-HPC AVX-512 workloads Intel will need much higher performance to match AMD’s 64 core parts.
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Izvor: HotHardware i ServeTheHome
 
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