AMD EPYC 7663 vs AMD EPYC 7343

Comparative analysis of AMD EPYC 7663 and AMD EPYC 7343 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

  • 40 more cores, run more applications at once: 56 vs 16
  • 80 more threads: 112 vs 32
  • 3.5x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 3.5x 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 11% better performance in PassMark - CPU mark: 82087 vs 73934
Specifications (specs)
Number of cores 56 vs 16
Number of threads 112 vs 32
L1 cache 64 KB (per core) vs 1 MB
L2 cache 512 KB (per core) vs 8 MB
L3 cache 256 MB (shared) vs 128 MB
Benchmarks
PassMark - CPU mark 82087 vs 73934

Reasons to consider the AMD EPYC 7343

  • Around 11% higher clock speed: 3.9 GHz vs 3.5 GHz
  • Around 26% lower typical power consumption: 190 Watt vs 240 Watt
  • Around 8% better performance in PassMark - Single thread mark: 2806 vs 2606
Specifications (specs)
Maximum frequency 3.9 GHz vs 3.5 GHz
Thermal Design Power (TDP) 190 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark 2806 vs 2606

Compare benchmarks

CPU 1: AMD EPYC 7663
CPU 2: AMD EPYC 7343

PassMark - Single thread mark
CPU 1
CPU 2
2606
2806
PassMark - CPU mark
CPU 1
CPU 2
82087
73934
Name AMD EPYC 7663 AMD EPYC 7343
PassMark - Single thread mark 2606 2806
PassMark - CPU mark 82087 73934

Compare specifications (specs)

AMD EPYC 7663 AMD EPYC 7343

Essentials

Launch date 15 Mar 2021 15 Mar 2021
Launch price (MSRP) $6366 $1565
Place in performance rating 119 130
Architecture codename Zen 3
OPN PIB 100-100000338WOF
OPN Tray 100-000000338
Vertical segment Server

Performance

Base frequency 2000 MHz 3.2 GHz
Die size 8x 81 mm²
L1 cache 64 KB (per core) 1 MB
L2 cache 512 KB (per core) 8 MB
L3 cache 256 MB (shared) 128 MB
Manufacturing process technology 7 nm 7 nm+
Maximum frequency 3.5 GHz 3.9 GHz
Number of cores 56 16
Number of threads 112 32
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 165-200 Watt
Max number of CPUs in a configuration 2
Sockets supported SP3 SP3
Thermal Design Power (TDP) 240 Watt 190 Watt
Socket Count 1P/2P

Peripherals

PCIe configurations Gen 4, 128 Lanes, (CPU only)
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™)