Intel Core i5-9400F vs Intel Core i7-7700K. Specifications, performance, tests

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

• CPU group
  Intel Core i 9000 Intel Core i 7000
• Family
  Intel Core i5 Intel Core i7
• Generation
  9 7
• Predecessor
  Intel Core i5-8400 Intel Core i7-6700K
• Segment
  Desktop / Server Desktop / Server
• Successor
  Intel Core i5-10400F Intel Core i7-8700K

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 4.2 GHz
• Core architecture
  normal normal
• CPU Cores
  6 4
• CPU Threads
  6 8
• Hyperthreading / SMT
  No Yes
• Overclocking
  No Yes
• Turbo Frequency (1 Core)
  4.1 GHz 4.5 GHz
• Turbo Frequency (6 Cores)
  3.9 GHz -
• Turbo Frequency (4 Cores)
  - 4.4 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.

• GPU name
  None Intel HD Graphics 630
• DirectX Version
  - 12
• Execution units
  - 24
• Generation
  - 9.5
• GPU Frequency
  - 350 MHz
• GPU Turbo
  - 1150 MHz
• Max. displays
  - 3
• Max. GPU Memory
  - 64 GB
• Release date
  - Q2/2016
• Shader
  - 192
• Technology
  - 14 nm

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

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

Types, channel quantity of RAM supported by Intel Core i7-7700K and Intel Core i5-9400F. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  128 GB 64 GB
• Memory channels
  2 2
• Memory type
  DDR4-2666 -
• PCIe lanes
  16 16
• PCIe version
  3.0 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i5-9400F and Intel Core i7-7700K 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 -
• TDP (PL1, legacy label)
  65 W 91 W

Architecture, interfaces, additional instructions supported by Intel Core i5-9400F and Intel Core i7-7700K, virtual machine technologies and process technology.

• Architecture
  Coffee Lake S Refresh Kaby 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
• L3-Cache
  9 MB 8 MB
• Release date
  Q1/2019 Q1/2017
• Socket
  LGA 1151-2 LGA 1151
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d