Intel Core i5-10400 vs Intel Core i9-11900K. Specifications, performance, tests

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

• CPU group
  Intel Core i 10000 Intel Core i 11000
• Family
  Intel Core i5 Intel Core i9
• Generation
  10 11
• Predecessor
  Intel Core i5-9400 Intel Core i9-10900K
• Segment
  Desktop / Server Desktop / Server
• Successor
  Intel Core i5-11400 Intel Core i9-12900K

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  2.9 GHz 3.5 GHz
• Core architecture
  normal normal
• CPU Cores
  6 8
• CPU Threads
  12 16
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No Yes
• Turbo Frequency (1 Core)
  4.3 GHz 5.3 GHz
• Turbo Frequency (6 Cores)
  4 GHz -
• Turbo Frequency (8 Cores)
  - 4.8 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.

• DirectX Version
  12 12
• Execution units
  24 32
• Generation
  9.5 12
• GPU Frequency
  350 MHz 350 MHz
• GPU name
  Intel UHD Graphics 630 Intel UHD Graphics 750
• GPU Turbo
  1200 MHz 1300 MHz
• Max. displays
  3 3
• Max. GPU Memory
  64 GB -
• Release date
  Q4/2017 Q1/2021
• Shader
  192 256
• Technology
  14 nm 14 nm

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

• AV1
  No Decode
• H.264 / AVC
  Decode / Encode Decode / Encode
• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• JPEG
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• VP8
  Decode / Encode Decode
• VP9
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i9-11900K and Intel Core i5-10400. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  128 GB 128 GB
• Memory channels
  2 2
• Memory type
  DDR4-2666 DDR4-3200
• PCIe lanes
  16 20
• PCIe version
  3.0 4.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i5-10400 and Intel Core i9-11900K 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 100 °C
• TDP (PL1, legacy label)
  65 W 125 W
• TDP (PL2)
  - 251 W / 56 s
• TDP down
  - 95 W

Architecture, interfaces, additional instructions supported by Intel Core i5-10400 and Intel Core i9-11900K, virtual machine technologies and process technology.

• Architecture
  Comet Lake S Rocket Lake S
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2, AVX-512
• L2-Cache
  - 4.00 MB
• L3-Cache
  12.00 MB 16.00 MB
• Release date
  Q2/2020 Q1/2021
• Socket
  LGA 1200 LGA 1200
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d