AMD EPYC 7643 vs AMD EPYC 7443P

Comparative analysis of AMD EPYC 7643 and AMD EPYC 7443P 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

  • 24 more cores, run more applications at once: 48 vs 24
  • 48 more threads: 96 vs 48
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 2x 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 55% better performance in PassMark - CPU mark: 88348 vs 56966
Specifications (specs)
Number of cores 48 vs 24
Number of threads 96 vs 48
L1 cache 3 MB vs 1536 KB
L2 cache 24 MB vs 12 MB
L3 cache 256 MB vs 128 MB
Benchmarks
PassMark - CPU mark 88348 vs 56966

Reasons to consider the AMD EPYC 7443P

  • Around 11% higher clock speed: 4.0 GHz vs 3.6 GHz
  • Around 20% lower typical power consumption: 200 Watt vs 240 Watt
  • Around 52% better performance in PassMark - Single thread mark: 2904 vs 1915
Specifications (specs)
Maximum frequency 4.0 GHz vs 3.6 GHz
Thermal Design Power (TDP) 200 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark 2904 vs 1915

Compare benchmarks

CPU 1: AMD EPYC 7643
CPU 2: AMD EPYC 7443P

PassMark - Single thread mark
CPU 1
CPU 2
1915
2904
PassMark - CPU mark
CPU 1
CPU 2
88348
56966
Name AMD EPYC 7643 AMD EPYC 7443P
PassMark - Single thread mark 1915 2904
PassMark - CPU mark 88348 56966

Compare specifications (specs)

AMD EPYC 7643 AMD EPYC 7443P

Essentials

Architecture codename Zen 3 Zen 3
Launch date 15 Mar 2021 15 Mar 2021
Launch price (MSRP) $4995 $1337
OPN PIB 100-100000326WOF 100-100000342WOF
OPN Tray 100-000000326 100-000000342
Place in performance rating 223 220
Vertical segment Server Server

Performance

Base frequency 2.3 GHz 2.85 GHz
L1 cache 3 MB 1536 KB
L2 cache 24 MB 12 MB
L3 cache 256 MB 128 MB
Manufacturing process technology 7 nm+ 7 nm+
Maximum frequency 3.6 GHz 4.0 GHz
Number of cores 48 24
Number of threads 96 48
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 165-200 Watt
Socket Count 1P/2P 1P
Sockets supported SP3 SP3
Thermal Design Power (TDP) 240 Watt 200 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™)