AMD Ryzen Threadripper Pro 3945WX vs AMD Ryzen Threadripper Pro 3955WX. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• CPU group
  AMD Ryzen Threadripper PRO 3000 AMD Ryzen Threadripper PRO 3000
• Family
  AMD Ryzen AMD Ryzen
• Generation
  3 3
• Segment
  Desktop / Server Desktop / Server

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  4 GHz 3.9 GHz
• Core architecture
  normal normal
• CPU Cores
  12 16
• CPU Threads
  24 32
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.3 GHz 4.3 GHz
• Turbo Frequency (12 Cores)
  4.2 GHz -
• Turbo Frequency (16 Cores)
  - 4 GHz

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• GPU name
  None None
• Graphics verification source
  https://www.amd.com/en/products/specifications/processors.html https://www.amd.com/en/products/specifications/processors.html

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• AV1
  No No
• H.264 / AVC
  No No
• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• JPEG
  No No
• VC-1
  No No
• VP8
  No No
• VP9
  No No

Types, channel quantity of RAM supported by AMD Ryzen Threadripper Pro 3955WX and AMD Ryzen Threadripper Pro 3945WX. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen Threadripper Pro 3945WX and AMD Ryzen Threadripper Pro 3955WX Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  95 °C 95 °C
• TDP (PL1, legacy label)
  280 W 280 W

Architecture, interfaces, additional instructions supported by AMD Ryzen Threadripper Pro 3945WX and AMD Ryzen Threadripper Pro 3955WX, virtual machine technologies and process technology.

• Architecture
  Castle Peak (Zen 2) Castle Peak (Zen 2)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L3-Cache
  64.00 MB 64.00 MB
• Release date
  Q1/2021 Q1/2021
• Socket
  WRX8 (sWRX8) WRX8 (sWRX8)
• Technology
  7 nm 7 nm
• Virtualization
  AMD-V, SVM AMD-V, SVM