Intel Core i5-8400H vs Intel Core i5-8250U. Specifications, performance, tests

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

• CPU group
  Intel Core i 8000H Intel Core i 8000U
• Family
  Intel Core i5 Intel Core i5
• Generation
  8 8
• Segment
  Mobile Mobile

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

• Base Frequency
  2.5 GHz 1.6 GHz
• Core architecture
  normal normal
• CPU Cores
  4 4
• CPU Threads
  8 8
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  4.2 GHz 3.4 GHz
• Turbo Frequency (4 Cores)
  3.7 GHz 2.3 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 24
• Generation
  9.5 9.5
• GPU Frequency
  300 MHz 300 MHz
• GPU name
  Intel HD Graphics 630 Intel UHD Graphics 620
• GPU Turbo
  1100 MHz 1100 MHz
• Max. displays
  3 3
• Max. GPU Memory
  64 GB 64 GB
• Release date
  Q2/2016 Q3/2016
• Shader
  192 192
• Technology
  14 nm 14 nm

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

• AV1
  No No
• 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 / Encode
• VP9
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i5-8250U and Intel Core i5-8400H. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  - 32 GB
• Memory channels
  2 2
• Memory type
  DDR4-2400 SO-DIMM DDR4-2400 SO-DIMM
• PCIe lanes
  16 12
• PCIe version
  3.0 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i5-8400H and Intel Core i5-8250U Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• TDP (PL1, legacy label)
  45 W 15 W

Architecture, interfaces, additional instructions supported by Intel Core i5-8400H and Intel Core i5-8250U, virtual machine technologies and process technology.

• Architecture
  Coffee Lake H Kaby Lake U Refresh
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• L3-Cache
  8.00 MB 6.00 MB
• Release date
  Q2/2018 Q3/2017
• Socket
  BGA 1440 BGA 1356
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d