AMD EPYC 7643 vs AMD EPYC 7502

Comparative analysis of AMD EPYC 7643 and AMD EPYC 7502 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 7643

  • CPU is newer: launch date 1 year(s) 7 month(s) later
  • 16 more cores, run more applications at once: 48 vs 32
  • 32 more threads: 96 vs 64
  • Around 7% higher clock speed: 3.6 GHz vs 3.35 GHz
  • Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
  • 2x more L3 cache, more data can be stored in the L3 cache for quick access later
  • Around 10% better performance in PassMark - CPU mark: 88348 vs 80300
Specifications (specs)
Launch date 15 Mar 2021 vs 7 Aug 2019
Number of cores 48 vs 32
Number of threads 96 vs 64
Maximum frequency 3.6 GHz vs 3.35 GHz
L1 cache 3 MB vs 2 MB
L2 cache 24 MB vs 16 MB
L3 cache 256 MB vs 128 MB
Benchmarks
PassMark - CPU mark 88348 vs 80300

Reasons to consider the AMD EPYC 7502

  • Around 33% lower typical power consumption: 180 Watt vs 240 Watt
  • Around 14% better performance in PassMark - Single thread mark: 2189 vs 1915
Specifications (specs)
Thermal Design Power (TDP) 180 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark 2189 vs 1915

Compare benchmarks

CPU 1: AMD EPYC 7643
CPU 2: AMD EPYC 7502

PassMark - Single thread mark
CPU 1
CPU 2
1915
2189
PassMark - CPU mark
CPU 1
CPU 2
88348
80300
Name AMD EPYC 7643 AMD EPYC 7502
PassMark - Single thread mark 1915 2189
PassMark - CPU mark 88348 80300

Compare specifications (specs)

AMD EPYC 7643 AMD EPYC 7502

Essentials

Architecture codename Zen 3 Zen 2
Launch date 15 Mar 2021 7 Aug 2019
Launch price (MSRP) $4995 $2600
OPN PIB 100-100000326WOF 100-100000054WOF
OPN Tray 100-000000326 100-000000054
Place in performance rating 223 213
Vertical segment Server Server
Family EPYC
Processor Number 7502
Series 7002

Performance

Base frequency 2.3 GHz 2.5 GHz
L1 cache 3 MB 2 MB
L2 cache 24 MB 16 MB
L3 cache 256 MB 128 MB
Manufacturing process technology 7 nm+
Maximum frequency 3.6 GHz 3.35 GHz
Number of cores 48 32
Number of threads 96 64
Unlocked

Memory

ECC memory support
Max memory channels 8 8
Maximum memory bandwidth 190.73 GB/s 204.8 GB/s
Maximum memory size 4 TB 4 TB
Supported memory types DDR4-3200 DDR4-3200

Compatibility

Configurable TDP 225-240 Watt
Socket Count 1P/2P 1P/2P
Sockets supported SP3 SP3
Thermal Design Power (TDP) 240 Watt 180 Watt

Peripherals

Max number of PCIe lanes 128 128
PCI Express revision 4.0 4.0
PCIe configurations x16, x8

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™)