Intel claims new 32-core Xeon CPUs will easily beat 64-core AMD Epyc but there’s a catch

Intel has shared more details and some interesting performance data for its forthcoming third-generation Xeon Scalable “Ice Lake-SP” server processor. Tom’s Hardware reports that as per preliminary tests by Intel at the Supercomputing 2020 virtual trade show, a server running two 32-core Ice Lake CPUs outperformed a machine based on two of AMD’s 64-core EPYC “Rome” processors, currently one of the fastest models in AMD’s portfolio; Ice Lake-SP, Intel’s first server processor with 10nm technology, uses a brand new microarchitecture and a new platform to support increased memory bandwidth. Numbers game For a fair comparison, Intel pitted a server running two 32-core Xeon Scalable ‘Ice Lake’ CPUs clocked at 2.20GHz and paired with 256GB of DDR4-3400 memory against a server powered by two 64-core AMD EPYC 7742 processors clocked at 2.25GHz and equipped with 256GB of DDR4-3200. The Ice Lake-SP equipped server outscored the AMD Rome 7742-powered server by about 20% to 30% as measured by several industry benchmarks including the LAMMPS, NAMD STMV, and Monte Carlo. Intel credits the performance gains to the new Sunny Cove microarchitecture coupled with special-purpose accelerators and extended memory support on the new processors. In addition to featuring up to 32 cores, the upcoming…