AMD EPYC 7543P vs AMD EPYC 7643

Comparative analysis of AMD EPYC 7543P and AMD EPYC 7643 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 7543P

  • Around 3% higher clock speed: 3.7 GHz vs 3.6 GHz
  • Around 2% better performance in PassMark - Single thread mark: 2758 vs 2697
Specifications (specs)
Maximum frequency 3.7 GHz vs 3.6 GHz
Benchmarks
PassMark - Single thread mark 2758 vs 2697

Reasons to consider the AMD EPYC 7643

  • 16 more cores, run more applications at once: 48 vs 32
  • 32 more threads: 96 vs 64
  • 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
  • Around 13% better performance in PassMark - CPU mark: 76712 vs 67733
Specifications (specs)
Number of cores 48 vs 32
Number of threads 96 vs 64
L1 cache 3 MB vs 2 MB
L2 cache 24 MB vs 16 MB
Benchmarks
PassMark - CPU mark 76712 vs 67733

Compare benchmarks

CPU 1: AMD EPYC 7543P
CPU 2: AMD EPYC 7643

PassMark - Single thread mark
CPU 1
CPU 2
2758
2697
PassMark - CPU mark
CPU 1
CPU 2
67733
76712
Name AMD EPYC 7543P AMD EPYC 7643
PassMark - Single thread mark 2758 2697
PassMark - CPU mark 67733 76712

Compare specifications (specs)

AMD EPYC 7543P AMD EPYC 7643

Essentials

Architecture codename Zen 3 Zen 3
Launch date 15 Mar 2021 15 Mar 2021
Launch price (MSRP) $2730 $4995
OPN PIB 100-100000341WOF 100-100000326WOF
OPN Tray 100-000000341 100-000000326
Place in performance rating 9 7
Vertical segment Server Server

Performance

Base frequency 2.8 GHz 2.3 GHz
L1 cache 2 MB 3 MB
L2 cache 16 MB 24 MB
L3 cache 256 MB 256 MB
Manufacturing process technology 7 nm+ 7 nm+
Maximum frequency 3.7 GHz 3.6 GHz
Number of cores 32 48
Number of threads 64 96
Unlocked

Memory

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

Compatibility

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

Peripherals

Max number of PCIe lanes 128 128
PCI Express revision 4.0 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™)