AMD Epyc 7742 vs AMD EPYC 9654P. Specifications, performance, tests

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

• CPU group
  AMD Epyc 7002 AMD EPYC 9004
• Family
  AMD Epyc AMD EPYC
• Generation
  2 4
• 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
  2.25 GHz 2.4 GHz
• Core architecture
  normal normal
• CPU Cores
  64 96
• CPU Threads
  128 192
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  3.4 GHz 3.7 GHz
• Turbo Frequency (64 Cores)
  2.8 GHz -
• Core Configuration
  - 96x Zen 4
• Turbo Frequency (96 Cores)
  - 3.55 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 9654P and AMD Epyc 7742. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  - 6144 GB
• Memory channels
  8 12
• Memory type
  DDR4-3200 DDR5-4800
• PCIe lanes
  128 -
• PCIe version
  4.0 -
• Memory Bandwidth
  - 461 GB/s
• PCIe
  - 5.0 x 128

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Epyc 7742 and AMD EPYC 9654P 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
  - 100 °C
• TDP (PL1, legacy label)
  225 W 360 W
• TDP down
  - 320 W
• TDP up
  - 400 W

Architecture, interfaces, additional instructions supported by AMD Epyc 7742 and AMD EPYC 9654P, virtual machine technologies and process technology.

• Architecture
  Rome (Zen 2) Genoa (Zen 4)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI
• L2-Cache
  - 96 MB
• L3-Cache
  256 MB 384 MB
• Part Number
  - 100-000000803
• Release date
  Q3/2019 Q4/2022
• Socket
  SP3 SP5
• Technology
  7 nm 5 nm
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Chip design
  - Chiplet
• Documents
  - Technical data sheet
• Operating systems
  - Windows Server 2022, Linux, Windows 11
• Release price
  - 10625 $