Intel Core i9-12900K vs AMD Ryzen 9 7950X3D. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i9 AMD Ryzen 9
• Generation
  12 6
• CPU group
  Intel Core i 12000 AMD Ryzen 7000
• Predecessor
  Intel Core i9-11900K --
• Successor
  Intel Core i9-13900K --

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.

• Frequency
  3.70 GHz 4.20 GHz
• Overclocking
  Yes No
• Core architecture
  hybrid (big.LITTLE) normal

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 Iris Xe Graphics 32 (Alder Lake S) AMD Radeon Graphics (Raphael)
• GPU frequency
  0.40 GHz 0.40 GHz
• GPU (Turbo)
  1.45 GHz 2.20 GHz
• Execution units
  32 2
• Shader
  256 128
• Max. GPU Memory
  16 GB 8 GB
• Max. displays
  4 3
• Generation
  12 9
• Technology
  10 nm 5 nm
• Release date
  Q4/2021 Q3/2022

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

• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• h264
  Decode / Encode Decode / Encode
• VP9
  Decode / Encode Decode / Encode
• VP8
  Decode Decode / Encode
• AV1
  Decode No
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by AMD Ryzen 9 7950X3D and Intel Core i9-12900K. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800 DDR5-5200
• Max. Memory
  256 GB 128 GB
• ECC
  No Yes
• Memory channels
  2 2 (Dual Channel)

Compare the TDP requirements of TDP Intel Core i9-12900K and AMD Ryzen 9 7950X3D to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL2)
  228 W / 56 s 162 W
• Tjunction max.
  100 °C 89 °C

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

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• L2-Cache
  3.75 MB 16.00 MB
• L3-Cache
  30.00 MB 128.00 MB
• Architecture
  Alder Lake S Raphael (Zen 4)
• Technology
  10 nm 5 nm
• Socket
  LGA 1700 AM5 (LGA 1718)
• Release date
  Q4/2021 Q1/2023
• Part Number
  BX8071512900K --