AMD Epyc 7551 vs AMD Ryzen 9 5950X. Specifications, performance, tests

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

• CPU group
  AMD Epyc 7001 AMD Ryzen 5000
• Family
  AMD Epyc Ryzen
• Generation
  1 4
• Predecessor
  - AMD Ryzen 9 3950X
• Segment
  Desktop / Server Desktop
• Successor
  AMD Epyc 7552 -
• Form Factor
  - Desktops / Boxed Processor
• Series
  - Ryzen 5000 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 3.4 GHz
• Core architecture
  normal normal
• CPU Cores
  32 16
• CPU Threads
  64 32
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No Yes
• Turbo Frequency (1 Core)
  3 GHz 4.9 GHz
• Turbo Frequency (32 Cores)
  2.55 GHz -
• Max. Boost Clock
  - 4.9 GHz
• Turbo Frequency (16 Cores)
  - 4.2 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 -

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 9 5950X and AMD Epyc 7551. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  - 128 GB
• Memory channels
  8 2
• Memory type
  DDR4-2666 DDR4
• PCIe lanes
  128 20
• PCIe version
  3.0 4.0
• PCIe
  - PCIe 4.0
• System Memory Specification
  - 3200

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Epyc 7551 and AMD Ryzen 9 5950X 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)
  180 W 105 W
• TDP (PL2)
  - 142 W
• Default TDP
  - 105 W

Architecture, interfaces, additional instructions supported by AMD Epyc 7551 and AMD Ryzen 9 5950X, virtual machine technologies and process technology.

• Architecture
  Naples (Zen) Vermeer (Zen 3)
• 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
  64 MB 64 MB
• Release date
  Q3/2017 2020-11-05
• Socket
  SP3 AM4
• Technology
  14 nm TSMC 7nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Codename
  - Vermeer