Intel Core i5-11400T vs AMD Epyc 7643. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i5 AMD Epyc
• Generation
  11 3
• CPU group
  Intel Core i 11000 AMD Epyc 7003
• Predecessor
  Intel Core i5-10400T AMD Epyc 7642

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
  1.30 GHz 2.30 GHz
• CPU Cores
  6 48
• Turbo (1 Core)
  3.70 GHz 3.60 GHz
• CPU Threads
  12 96
• Hyperthreading
  Yes Yes
• Overclocking
  No 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
  Intel UHD Graphics 730 no iGPU
• GPU frequency
  0.35 GHz
• GPU (Turbo)
  1.20 GHz No turbo
• Execution units
  24
• Shader
  192
• Max. GPU Memory
  64 GB --
• Max. displays
  3
• Generation
  12
• DirectX Version
  12
• Technology
  14 nm
• Release date
  Q1/2021

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

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

Types, channel quantity of RAM supported by AMD Epyc 7643 and Intel Core i5-11400T. 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 i5-11400T and AMD Epyc 7643 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  35 W 280 W
• TDP (PL2)
  84 W / 28 s --
• TDP down
  25 W --
• Tjunction max.
  100 °C --

Architecture, interfaces, additional instructions supported by Intel Core i5-11400T and Intel Core i5-11400T, 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
  3.00 MB --
• L3-Cache
  12.00 MB 256.00 MB
• Architecture
  Rocket Lake S Milan (Zen 3)
• Technology
  14 nm 7 nm
• Socket
  LGA 1200 SP3
• Release date
  Q1/2021 Q1/2021