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

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i9 Intel Core i9
• Generation
  12 11
• CPU group
  Intel Core i 12000 Intel Core i 11000
• Predecessor
  Intel Core i9-11900KF Intel Core i9-10900

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
  2.40 GHz 2.50 GHz
• CPU Cores
  16 8
• Turbo (1 Core)
  5.30 GHz 5.20 GHz
• CPU Threads
  24 16
• Hyperthreading
  Yes Yes
• Overclocking
  Yes No
• Core architecture
  hybrid (big.LITTLE) normal
• A core
  8x Golden Cove --
• B core
  8x Gracemont --

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 Intel UHD Graphics 750
• GPU frequency
  0.35 GHz 0.35 GHz
• GPU (Turbo)
  1.45 GHz 1.30 GHz
• Execution units
  32 32
• Shader
  256 256
• Max. displays
  3 3
• Generation
  11 12
• DirectX Version
  12 12
• Technology
  10 nm 14 nm
• Release date
  Q4/2021 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
• VP9
  Decode / Encode Decode / Encode
• VP8
  Decode / Encode Decode
• 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 i9-11900 and Intel Core i9-12900T. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800 DDR4-3200
• Max. Memory
  256 GB 128 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  5.0 4.0
• PCIe lanes
  20 20

• AES-NI
  Yes Yes

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

• TDP (PL1)
  35 W 65 W
• TDP (PL2)
  -- 224 W / 56 s
• Tjunction max.
  100 °C 100 °C

Architecture, interfaces, additional instructions supported by Intel Core i9-12900T and Intel Core i9-12900T, 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 VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ SSE4.1, SSE4.2, AVX2, AVX-512
• L2-Cache
  3.75 MB 4.00 MB
• L3-Cache
  30.00 MB 16.00 MB
• Architecture
  Alder Lake S Rocket Lake S
• Technology
  10 nm 14 nm
• Socket
  LGA 1700 LGA 1200
• Release date
  Q4/2021 Q1/2021
• Part Number
  BX8071512900KF --