AMD EPYC 7763 vs AMD EPYC 7643

Comparative analysis of AMD EPYC 7763 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 7763

  • 16 more cores, run more applications at once: 64 vs 48
  • 32 more threads: 128 vs 96
  • Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 15% better performance in PassMark - CPU mark: 87767 vs 76455
Specifications (specs)
Number of cores 64 vs 48
Number of threads 128 vs 96
L1 cache 4 MB vs 3 MB
L2 cache 32 MB vs 24 MB
Benchmarks
PassMark - CPU mark 87767 vs 76455

Reasons to consider the AMD EPYC 7643

  • Around 3% higher clock speed: 3.6 GHz vs 3.5 GHz
  • Around 17% lower typical power consumption: 240 Watt vs 280 Watt
  • Around 2% better performance in PassMark - Single thread mark: 2695 vs 2639
Specifications (specs)
Maximum frequency 3.6 GHz vs 3.5 GHz
Thermal Design Power (TDP) 240 Watt vs 280 Watt
Benchmarks
PassMark - Single thread mark 2695 vs 2639

Compare benchmarks

CPU 1: AMD EPYC 7763
CPU 2: AMD EPYC 7643

PassMark - Single thread mark
CPU 1
CPU 2
2639
2695
PassMark - CPU mark
CPU 1
CPU 2
87767
76455
Name AMD EPYC 7763 AMD EPYC 7643
PassMark - Single thread mark 2639 2695
PassMark - CPU mark 87767 76455

Compare specifications (specs)

AMD EPYC 7763 AMD EPYC 7643

Essentials

Architecture codename Zen 3 Zen 3
Launch date 15 Mar 2021 15 Mar 2021
Launch price (MSRP) $7890 $4995
OPN PIB 100-100000312WOF 100-100000326WOF
OPN Tray 100-000000312 100-000000326
Place in performance rating 5 7
Vertical segment Server Server

Performance

Base frequency 2.45 GHz 2.3 GHz
L1 cache 4 MB 3 MB
L2 cache 32 MB 24 MB
L3 cache 256 MB 256 MB
Manufacturing process technology 7 nm+ 7 nm+
Maximum frequency 3.5 GHz 3.6 GHz
Number of cores 64 48
Number of threads 128 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 225-280 Watt 225-240 Watt
Socket Count 1P/2P 1P/2P
Sockets supported SP3 SP3
Thermal Design Power (TDP) 280 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™)