Intel Core i5-8400 vs Intel Core i7-4650U. Specifications, performance, tests

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

• CPU group
  Intel Core i 8000 Intel Core i 4000U
• Family
  Intel Core i5 Intel Core i7
• Generation
  8 4
• Predecessor
  Intel Core i5-7400 -
• Segment
  Desktop / Server Mobile
• Successor
  Intel Core i5-9400 -

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

• Base Frequency
  2.8 GHz 1.7 GHz
• Core architecture
  normal normal
• CPU Cores
  6 2
• CPU Threads
  6 4
• Hyperthreading / SMT
  No Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  4 GHz 3.3 GHz
• Turbo Frequency (6 Cores)
  3.8 GHz -
• Turbo Frequency (2 Cores)
  - 2.9 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 11.1
• Execution units
  24 40
• Generation
  9.5 7.5
• GPU Frequency
  350 MHz 200 MHz
• GPU name
  Intel UHD Graphics 630 Intel HD Graphics 5000
• GPU Turbo
  1150 MHz 1100 MHz
• Max. displays
  3 3
• Max. GPU Memory
  64 GB 2 GB
• Release date
  Q4/2017 Q2/2013
• Shader
  192 320
• Technology
  14 nm 22 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 No
• h265 / HEVC (10 bit)
  Decode / Encode No
• JPEG
  Decode / Encode Decode
• VC-1
  Decode Decode
• VP8
  Decode / Encode No
• VP9
  Decode / Encode No

Types, channel quantity of RAM supported by Intel Core i7-4650U and Intel Core i5-8400. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  128 GB -
• Memory channels
  2 2
• Memory type
  DDR4-2666 DDR3L-1600 SO-DIMM
• PCIe lanes
  16 12
• PCIe version
  3.0 2.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i5-8400 and Intel Core i7-4650U 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)
  65 W 15 W

Architecture, interfaces, additional instructions supported by Intel Core i5-8400 and Intel Core i7-4650U, virtual machine technologies and process technology.

• Architecture
  Coffee Lake S Haswell U
• 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
  9 MB 4 MB
• Release date
  Q4/2017 Q3/2013
• Socket
  LGA 1151-2 BGA 1168
• Technology
  14 nm 22 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d