Intel Core i9-12900KS vs AMD Ryzen 9 5950X. Specifications, performance, tests

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

• Family
  Intel Core i9 AMD Ryzen
• CPU group
  Intel Core i 12000 AMD Ryzen 5000
• Segment
  Desktop / Server Desktop / Server
• Generation
  12 4
• Predecessor
  -- AMD Ryzen 9 3950X

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.

• Core architecture
  hybrid (big.LITTLE) normal
• Frequency
  3.20 GHz 3.40 GHz
• Turbo (1 Core)
  5.50 GHz 4.90 GHz
• Turbo (16 Cores)
  5.00 GHz 4.20 GHz
• Hyperthreading
  Yes Yes
• Overclocking
  Yes Yes

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
  Intel UHD Graphics 770 no iGPU
• GPU frequency
  0.30 GHz --
• GPU (Turbo)
  1.45 GHz No turbo
• Execution units
  32 --
• Shader
  256 --
• 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)
  Decode / Encode No
• h265 / HEVC (10 bit)
  Decode / Encode No
• h264
  Decode / Encode No
• VP8
  Decode / Encode No
• VP9
  Decode / Encode No
• AV1
  Decode No
• AVC
  Decode / Encode No
• VC-1
  Decode No
• JPEG
  Decode / Encode No

Types, channel quantity of RAM supported by AMD Ryzen 9 5950X and Intel Core i9-12900KS. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800 DDR4-3200
• Max. Memory
  128 GB 128 GB
• Memory channels
  2 2
• ECC
  No Yes

Compare the TDP requirements of TDP Intel Core i9-12900KS and AMD Ryzen 9 5950X to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  125 W 105 W
• TDP (PL2)
  241 W 142 W
• Tjunction max.
  100 °C 95 °C

Architecture, interfaces, additional instructions supported by Intel Core i9-12900KS and Intel Core i9-12900KS, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L2-Cache
  14.00 MB 8.00 MB
• L3-Cache
  30.00 MB 64.00 MB
• Architecture
  Alder Lake S Vermeer (Zen 3)
• Technology
  10 nm 7 nm
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• Socket
  LGA 1700 AM4
• Release date
  Q2/2022 Q4/2020
• Part Number
  BX8071512900K --