AMD EPYC 7663 vs AMD EPYC 7662

Comparative analysis of AMD EPYC 7663 and AMD EPYC 7662 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

 

Differences

Reasons to consider the AMD EPYC 7663

  • CPU is newer: launch date 1 year(s) 0 month(s) later
  • Around 6% higher clock speed: 3.5 GHz vs 3.3 GHz
  • Around 25% better performance in PassMark - Single thread mark: 2606 vs 2089
Specifications (specs)
Launch date 15 Mar 2021 vs 19 Feb 2020
Maximum frequency 3.5 GHz vs 3.3 GHz
Benchmarks
PassMark - Single thread mark 2606 vs 2089

Reasons to consider the AMD EPYC 7662

  • 8 more cores, run more applications at once: 64 vs 56
  • 16 more threads: 128 vs 112
  • Around 14% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 14% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 7% lower typical power consumption: 225 Watt vs 240 Watt
  • Around 18% better performance in PassMark - CPU mark: 97178 vs 82087
Specifications (specs)
Number of cores 64 vs 56
Number of threads 128 vs 112
L1 cache 4 MB vs 64 KB (per core)
L2 cache 32 MB vs 512 KB (per core)
Thermal Design Power (TDP) 225 Watt vs 240 Watt
Benchmarks
PassMark - CPU mark 97178 vs 82087

Compare benchmarks

CPU 1: AMD EPYC 7663
CPU 2: AMD EPYC 7662

PassMark - Single thread mark
CPU 1
CPU 2
2606
2089
PassMark - CPU mark
CPU 1
CPU 2
82087
97178
Name AMD EPYC 7663 AMD EPYC 7662
PassMark - Single thread mark 2606 2089
PassMark - CPU mark 82087 97178

Compare specifications (specs)

AMD EPYC 7663 AMD EPYC 7662

Essentials

Launch date 15 Mar 2021 19 Feb 2020
Launch price (MSRP) $6366
Place in performance rating 120 129
Architecture codename Zen 3
OPN PIB 100-100000137WOF
OPN Tray 100-000000137
Vertical segment Server

Performance

Base frequency 2000 MHz 2.0 GHz
Die size 8x 81 mm²
L1 cache 64 KB (per core) 4 MB
L2 cache 512 KB (per core) 32 MB
L3 cache 256 MB (shared) 256 MB
Manufacturing process technology 7 nm 7 nm, 14 nm
Maximum frequency 3.5 GHz 3.3 GHz
Number of cores 56 64
Number of threads 112 128
Transistor count 33,200 million
Unlocked

Memory

ECC memory support
Supported memory types DDR4 DDR4-3200
Max memory channels 8
Maximum memory bandwidth 190.73 GB/s
Maximum memory size 4 TB

Compatibility

Configurable TDP 225 Watt
Max number of CPUs in a configuration 2
Sockets supported SP3 SP3
Thermal Design Power (TDP) 240 Watt 225 Watt
Socket Count 1P/2P

Peripherals

PCIe configurations Gen 4, 128 Lanes, (CPU only) x16, x8
Max number of PCIe lanes 128
PCI Express revision 4.0

Advanced Technologies

AMD SenseMI
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions

Virtualization

AMD Virtualization (AMD-V™)