Intel Core i9-9920X vs Intel Core i9-9940X. Specifications, performance, tests

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

• CPU group
  Intel Core i 9000X Intel Core i 9000X
• Family
  Intel Core i9 Intel Core i9
• Generation
  9 9
• Segment
  Desktop / Server Desktop / Server

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

• Base Frequency
  3.5 GHz 3.3 GHz
• Core architecture
  normal normal
• CPU Cores
  12 14
• CPU Threads
  24 28
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.5 GHz 4.5 GHz
• Turbo Frequency (12 Cores)
  4.3 GHz -
• Turbo Frequency (14 Cores)
  - 4.2 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 None
• Graphics verification source
  https://www.intel.com/content/www/us/en/support/articles/000027144/processors/intel-core-processors.html https://www.intel.com/content/www/us/en/support/articles/000027144/processors/intel-core-processors.html

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

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

Types, channel quantity of RAM supported by Intel Core i9-9940X and Intel Core i9-9920X. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  128 GB 128 GB
• Memory channels
  4 4
• Memory type
  DDR4-2666 DDR4-2666
• PCIe lanes
  44 44
• PCIe version
  3.0 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i9-9920X and Intel Core i9-9940X 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
  92 °C 92 °C
• TDP (PL1, legacy label)
  165 W 165 W

Architecture, interfaces, additional instructions supported by Intel Core i9-9920X and Intel Core i9-9940X, virtual machine technologies and process technology.

• Architecture
  Skylake X Refresh Skylake X Refresh
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4.1, SSE4.2, AVX2, AVX-512
• L3-Cache
  19 MB 19 MB
• Release date
  Q4/2018 Q4/2018
• Socket
  LGA 2066 LGA 2066
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d