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

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

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

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• Frequency
  2.90 GHz 3.50 GHz
• CPU Cores
  6 8
• Turbo (1 Core)
  4.30 GHz 5.30 GHz
• CPU Threads
  12 16
• Hyperthreading
  Yes Yes
• Overclocking
  No Yes
• Core architecture
  normal normal

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  Intel UHD Graphics 630 Intel UHD Graphics 750
• GPU frequency
  0.35 GHz 0.35 GHz
• GPU (Turbo)
  1.20 GHz 1.30 GHz
• Execution units
  24 32
• Shader
  192 256
• Max. GPU Memory
  64 GB --
• Max. displays
  3 3
• Generation
  9.5 12
• DirectX Version
  12 12
• Technology
  14 nm 14 nm
• Release date
  Q4/2017 Q1/2021

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

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

Overview of the types and quantities of RAM supported by Intel Core i9-11900K and Intel Core i5-10400. The supported memory frequencies may vary depending on the motherboard configuration.

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

• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of Intel Core i5-10400 and Intel Core i9-11900K to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

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

Information on architecture, interfaces, and additional instructions supported by Intel Core i5-10400 and Intel Core i9-11900K, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• 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
• Architecture
  Comet Lake S Rocket Lake S
• Technology
  14 nm 14 nm
• Socket
  LGA 1200 LGA 1200
• Release date
  Q2/2020 Q1/2021