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Intel Unveils More Cascade Lake-AP 48 Core Xeon CPU Performance Numbers – Up To 3.4X Faster Than AMD EPYC 32 Core CPU


Intel has unveiled more performance numbers of their upcoming Xeon class, Cascade Lake-AP or Advanced Performance processors. The new processors were announced by Intel last week when they promised to give out more details at Supercomputing 18. It looks like Intel is now presenting us with even more details, although most of it was actually announced last week.

Intel Reveals More Cascade Lake-AP 48 Core Xeon Performance Numbers Versus AMD EPYC 32 Core

Last week, Intel announced that the Xeon lineup would be getting a new premium line of chips under the Advanced Performance moniker. The first processors in this lineup would be based on the Cascade Lake architecture and as such, use the Cascade Lake Advanced Performance naming scheme.

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These processors will be packaged in an MCP (Multi-Chip Package) design, featuring up to 48 cores and 96 threads per chip. The processors will also support 12 DDR4 channels, offering support of very dense capacity DIMMs and Optane DC memory.

Last week, Intel showed us preliminary performance numbers that were taken from a 2 socket server, featuring two 48 core chips which mean a total of 96 cores and 192 threads. The 12 channel memory will give a total of 24 DIMM slots and considering you can fill that up with some really dense ECC memory, we will be looking at up to 3 TB of memory support.

In addition to ECC memory, the new Xeons will also support the Optane DC Persistent memory, featuring capacities of up to 512 GB. 24 of these in the 2S server would give a mind-boggling 12 Terabytes of system memory. This would deliver an unprecedented amount of memory bandwidth which is only possible through a CPU in the class of Cascade Lake-AP. The performance results are mentioned below. Do note that the results are based on pre-production hardware so we are most probably looking at results based on early engineering samples.

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Industry Benchmarks:

  • 3.4x faster than AMD EPYC 7601 (2S) in Linpack
  • 1.2x faster than Intel Xeon Scalable 8180 (2S) in Linpack
  • 1.3x faster than AMD EPYC 7601 (2S) in Stream Triad
  • 1.83x faster than Intel Xeon Scalable 8180 (2S) in Stream Triad
  • 17.0x images per second versus Intel Xeon Scalable in AI/DL inference

Real World Benchmarks:

  • Up To 1.5X Faster than AMD EPYC 7601 (2S) in MILC
  • Up To 1.6X Faster than AMD EPYC 7601 (2S) in WRF
  • Up To 1.6X Faster Than AMD EPYC 7601 (2S) in OpenFOAM
  • Up To 2.1X Faster Than AMD EPYC 7601 (2S) in NAMD (APOA1)
  • Up To 3.1X Faster Than AMD EPYC 7601 (2S) in YASK (ISO3DFD)

What Intel Disclosed at Supercomputing 2018: At Supercomputing 2018, Intel disclosed new performance results for next-generation Cascade Lake advanced performance processors, a new class of Intel® Xeon® Scalable processor designed to support converged high-performance computing (HPC) and artificial intelligence (AI) workloads. Available in the first half of 2019, Cascade Lake advanced performance processors are designed to accelerate applications in the fields of physics, weather modeling, manufacturing, and life and material science. The processor features Intel® DL Boost technology, which improves AI/deep learning inference performance by up to 17 times1 compared with Intel Xeon Platinum processor measurements at its 2017 launch.

The North German Supercomputing Alliance will adopt Cascade Lake advanced performance processors in its next-generation supercomputer to enable significant computation gains and improved efficiency. Several OEMs have also announced intent to support Cascade Lake advanced performance, including Bull Atos*, Colfax*, Cray*, HPE*, Inspur*, Lenovo*, Megware*, Penguin*, Quanta*, Sugon*, and Supermicro*.

via Intel

We can also tell that the platform is of a way different design compared to Purley which houses the Skylake-SP and will house the upcoming Cascade Lake-SP Xeons. We can probably be looking at a different socket which was rumored to be the BGA 5903 and hence, a different platform will be shown. The new Cascade Lake-SP Xeon CPUs will be shipping in early 2019 and we can expect the Cascade Lake-AP Xeon CPUs to ship close to them. Intel hasn't confirmed the launch date but we will let you know once we have more details.

Intel Xeon SP Families (Preliminary):

Family BrandingSkylake-SPCascade Lake-SP/APCooper Lake-SPIce Lake-SPSapphire RapidsEmerald RapidsGranite RapidsDiamond Rapids
Process Node14nm+14nm++14nm++10nm+Intel 7Intel 7Intel 3Intel 3?
Platform NameIntel PurleyIntel PurleyIntel Cedar IslandIntel WhitleyIntel Eagle StreamIntel Eagle StreamIntel Mountain Stream
Intel Birch Stream
Intel Mountain Stream
Intel Birch Stream
Core ArchitectureSkylakeCascade LakeCascade LakeSunny CoveGolden CoveRaptor CoveRedwood Cove?Lion Cove?
IPC Improvement (Vs Prev Gen)10%0%0%20%19%8%?35%?39%?
MCP (Multi-Chip Package) SKUsNoYesNoNoYesYesTBD (Possibly Yes)TBD (Possibly Yes)
SocketLGA 3647LGA 3647LGA 4189LGA 4189LGA 4677LGA 4677TBDTBD
Max Core CountUp To 28Up To 28Up To 28Up To 40Up To 56Up To 64?Up To 120?Up To 144?
Max Thread CountUp To 56Up To 56Up To 56Up To 80Up To 112Up To 128?Up To 240?Up To 288?
Max L3 Cache38.5 MB L338.5 MB L338.5 MB L360 MB L3105 MB L3120 MB L3?240 MB L3?288 MB L3?
Vector EnginesAVX-512/FMA2AVX-512/FMA2AVX-512/FMA2AVX-512/FMA2AVX-512/FMA2AVX-512/FMA2AVX-1024/FMA3?AVX-1024/FMA3?
Memory SupportDDR4-2666 6-ChannelDDR4-2933 6-ChannelUp To 6-Channel DDR4-3200Up To 8-Channel DDR4-3200Up To 8-Channel DDR5-4800Up To 8-Channel DDR5-5600?Up To 12-Channel DDR5-6400?Up To 12-Channel DDR6-7200?
PCIe Gen SupportPCIe 3.0 (48 Lanes)PCIe 3.0 (48 Lanes)PCIe 3.0 (48 Lanes)PCIe 4.0 (64 Lanes)PCIe 5.0 (80 lanes)PCIe 5.0 (80 Lanes)PCIe 6.0 (128 Lanes)?PCIe 6.0 (128 Lanes)?
TDP Range (PL1)140W-205W165W-205W150W-250W105-270WUp To 350WUp To 375W?Up To 400W?Up To 425W?
3D Xpoint Optane DIMMN/AApache PassBarlow PassBarlow PassCrow PassCrow Pass?Donahue Pass?Donahue Pass?
CompetitionAMD EPYC Naples 14nmAMD EPYC Rome 7nmAMD EPYC Rome 7nmAMD EPYC Milan 7nm+AMD EPYC Genoa ~5nmAMD Next-Gen EPYC (Post Genoa)AMD Next-Gen EPYC (Post Genoa)AMD Next-Gen EPYC (Post Genoa)