Intel Core i3-8121U vs Intel Core i5-13400. Specifications, performance, tests

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

• Segment
  Mobile Desktop / Server
• Family
  Intel Core i3 Intel Core i5
• Generation
  8 13
• CPU group
  Intel Core i 8000U Intel Core i 13000
• Predecessor
  -- Intel Core i5-12400

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.

• Overclocking
  No No
• Core architecture
  normal hybrid (big.LITTLE)

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 Intel UHD Graphics 770
• GPU frequency
  0.30 GHz
• GPU (Turbo)
  No turbo 1.45 GHz
• Execution units
  32
• Shader
  256
• Max. GPU Memory
  -- 64 GB
• Max. displays
  3
• Generation
  11
• Technology
  10 nm
• Release date
  Q4/2021

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

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

Types, channel quantity of RAM supported by Intel Core i5-13400 and Intel Core i3-8121U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-2400 SO-DIMM DDR5-4800
• Max. Memory
  128 GB
• ECC
  No Yes
• Memory channels
  2 2 (Dual Channel)

Compare the TDP requirements of TDP Intel Core i3-8121U and Intel Core i5-13400 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 65 W
• TDP (PL2)
  -- 117 W
• Tjunction max.
  -- 100 °C

Architecture, interfaces, additional instructions supported by Intel Core i3-8121U and Intel Core i3-8121U, 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 VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4.1, SSE4.2, AVX2, AVX2+
• L2-Cache
  -- 20.00 MB
• L3-Cache
  4.00 MB 20.00 MB
• Architecture
  Cannon Lake U Alder Lake S Refresh
• Technology
  10 nm 10 nm
• Socket
  BGA 1356 LGA 1700
• Release date
  Q2/2018 Q1/2023