AMD Epyc 7662 vs AMD Ryzen Threadripper Pro 3955WX. Specifications, performance, tests

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

• CPU group
  AMD Epyc 7002 AMD Ryzen Threadripper PRO 3000
• Family
  AMD Epyc Ryzen Threadripper PRO
• Generation
  2 3
• Segment
  Desktop / Server Desktop / Server
• Successor
  AMD Epyc 7763 -
• Form Factor
  - Desktops / Boxed Processor
• Series
  - Ryzen Threadripper PRO 3000 WX-Series

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

• Base Frequency
  2 GHz 3.9 GHz
• Core architecture
  normal normal
• CPU Cores
  64 16
• CPU Threads
  128 32
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  3.3 GHz 4.3 GHz
• Turbo Frequency (64 Cores)
  2.4 GHz -
• Max. Boost Clock
  - 4.3 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
  no iGPU None
• GPU Turbo
  No turbo -
• Graphics verification source
  - 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 Epyc 7662. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Epyc 7662 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
  - 90 °C
• TDP (PL1, legacy label)
  225 W 280 W
• Default TDP
  - 280 W

Architecture, interfaces, additional instructions supported by AMD Epyc 7662 and AMD Ryzen Threadripper Pro 3955WX, virtual machine technologies and process technology.

• Architecture
  Rome (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
• L2-Cache
  - 8 MB
• L3-Cache
  256 MB 64 MB
• Release date
  Q1/2020 2020-07-14
• Socket
  SP3 sWRX8
• Technology
  7 nm TSMC 7nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Codename
  - Castle Peak
• L1-Cache
  - 1 MB
• Manufacturer product ID (boxed)
  - 100-100000167WOF
• Manufacturer product ID (tray)
  - 100-000000167
• Official source
  - https://www.amd.com/en/products/specifications/processors.html
• Operating systems
  - Windows 10 - 64-Bit Edition / Windows 11 - 64-Bit Edition
• Verification scope
  - Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved.
• Verified on
  - 2026-10-01