Comparing AMD Epyc 7643 vs AMD Epyc 7643

description_compare AMD Epyc 7643 and AMD Ryzen Threadripper 3970X

• Name
  AMD Epyc 7643 AMD Ryzen Threadripper 3970X
• Segment
  Desktop / Server Desktop / Server
• Family
  AMD Epyc AMD Ryzen
• Generation
  3 3
• CPU group
  AMD Epyc 7003 AMD Ryzen Threadripper 3000
• Predecessor
  AMD Epyc 7642 --

CPU Cores and Base Frequency

• Frequency
  2.30 GHz 3.70 GHz
• CPU Cores
  48 32
• Turbo (1 Core)
  3.60 GHz 4.50 GHz
• CPU Threads
  96 64
• Hyperthreading
  Yes Yes
• Overclocking
  No Yes
• Core architecture
  normal normal

• GPU name
  no iGPU no iGPU
• GPU (Turbo)
  No turbo No turbo

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  No No
• VP9
  No No
• VP8
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  No No

• Memory type
  DDR4-3200 DDR4-3200
• Max. Memory
  2048 GB
• ECC
  Yes Yes
• Memory channels
  8 4
• PCIe version
  4.0 4.0
• PCIe lanes
  128 72

• AES-NI
  Yes Yes

• TDP (PL1)
  280 W 280 W
• Tjunction max.
  -- 95 °C

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  AMD-V, SVM AMD-V, SVM
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L3-Cache
  256.00 MB 128.00 MB
• Architecture
  Milan (Zen 3) Castle Peak (Zen 2)
• Technology
  7 nm 7 nm
• Socket
  SP3 TRX4 (sTRX4)
• Release date
  Q1/2021 Q4/2019

• Used in
  Unknown Unknown