Intel Core i9-11900KF vs AMD Epyc 7642. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i9 AMD Epyc
• Generation
  11 2
• CPU group
  Intel Core i 11000 AMD Epyc 7002
• Predecessor
  Intel Core i9-10900KF --
• Successor
  Intel Core i9-12900KF AMD Epyc 7643

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  3.50 GHz 2.30 GHz
• CPU Cores
  8 48
• Turbo (1 Core)
  5.30 GHz 3.30 GHz
• CPU Threads
  16 96
• Hyperthreading
  Yes Yes
• Overclocking
  Yes No
• Core architecture
  normal normal

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.

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  No No
• VP9
  No No
• VP8
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  No No

Types, channel quantity of RAM supported by AMD Epyc 7642 and Intel Core i9-11900KF. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200 DDR4-3200
• Max. Memory
  128 GB
• ECC
  No Yes
• Memory channels
  2 8
• PCIe version
  4.0 4.0
• PCIe lanes
  20 128

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i9-11900KF and AMD Epyc 7642 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  125 W 225 W
• TDP (PL2)
  251 W / 56 s --
• TDP down
  95 W --
• Tjunction max.
  100 °C --

Architecture, interfaces, additional instructions supported by Intel Core i9-11900KF and Intel Core i9-11900KF, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L2-Cache
  4.00 MB --
• L3-Cache
  16.00 MB 256.00 MB
• Architecture
  Rocket Lake S Rome (Zen 2)
• Technology
  14 nm 7 nm
• Socket
  LGA 1200 SP3
• Release date
  Q1/2021 Q3/2019