Intel Core i9-12900H vs Intel Core i9-11900K. Specifications, performance, tests

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

• Family
  Intel Core i9 Intel Core i9
• CPU group
  Intel Core i 12000H Intel Core i 11000
• Segment
  Mobile Desktop / Server
• Generation
  12 11
• Predecessor
  Intel Core i9-11900H Intel Core i9-10900K
• Successor
  -- Intel Core i9-12900K

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
  2.50 GHz 3.50 GHz
• Turbo (1 Core)
  5.00 GHz 5.30 GHz
• Hyperthreading
  Yes Yes
• Overclocking
  No 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 Iris Xe Graphics 96 (Alder Lake) Intel UHD Graphics 750
• GPU frequency
  0.40 GHz 0.35 GHz
• GPU (Turbo)
  1.45 GHz 1.30 GHz
• Execution units
  96 32
• Shader
  768 256
• Max. GPU Memory
  64 GB --
• Max. displays
  4 3
• Generation
  13 12
• Technology
  10 nm 14 nm
• Release date
  Q1/2022 Q1/2021

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
• VP8
  Decode Decode
• VP9
  Decode / Encode Decode / Encode
• AV1
  Decode Decode
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i9-11900K and Intel Core i9-12900H. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 DDR4-3200
• Max. Memory
  64 GB 128 GB
• Memory channels
  2 2
• ECC
  No No

Compare the TDP requirements of TDP Intel Core i9-12900H and Intel Core i9-11900K to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  45 W 125 W
• TDP (PL2)
  115 W 251 W / 56 s
• TDP down
  -- 95 W
• Tjunction max.
  100 °C 100 °C

Architecture, interfaces, additional instructions supported by Intel Core i9-12900H and Intel Core i9-12900H, 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+ SSE4.1, SSE4.2, AVX2, AVX-512
• L2-Cache
  11.50 MB 4.00 MB
• L3-Cache
  24.00 MB 16.00 MB
• Architecture
  Alder Lake H Rocket Lake S
• Technology
  10 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• Socket
  BGA 1744 LGA 1200
• Release date
  Q1/2022 Q1/2021