AMD Epyc 7451 vs AMD Epyc 7401P. Specifications, performance, tests

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

• CPU group
  AMD Epyc 7001 AMD Epyc 7001
• Family
  AMD Epyc AMD Epyc
• Generation
  1 1
• 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
  2.3 GHz 2 GHz
• Core architecture
  normal normal
• CPU Cores
  24 24
• CPU Threads
  48 48
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  3.2 GHz 3 GHz
• Turbo Frequency (24 Cores)
  2.9 GHz 2.8 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 no iGPU
• GPU Turbo
  No 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 Epyc 7401P and AMD Epyc 7451. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Memory channels
  8 8
• Memory type
  DDR4-2666 DDR4-2666
• PCIe lanes
  128 128
• PCIe version
  3.0 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Epyc 7451 and AMD Epyc 7401P Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• TDP (PL1, legacy label)
  180 W 170 W

Architecture, interfaces, additional instructions supported by AMD Epyc 7451 and AMD Epyc 7401P, virtual machine technologies and process technology.

• Architecture
  Naples (Zen) Naples (Zen)
• 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
  Q3/2017 Q3/2017
• Socket
  SP3 SP3
• Technology
  14 nm 14 nm
• Virtualization
  AMD-V, SVM AMD-V, SVM