Intel Core i9-12900HX vs Intel Core i9-12900KF. Specifications, performance, tests

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

• CPU group
  Intel Core i 12000H Intel Core i 12000
• Family
  Intel Core i9 Intel Core i9
• Generation
  12 12
• Predecessor
  - Intel Core i9-11900KF
• Segment
  Mobile Desktop / Server

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

• A-Core
  8x Golden Cove 8x Golden Cove
• A-Core Frequency
  2.30 GHz (5.00 GHz) -
• B-Core
  8x Gracemont 8x Gracemont
• B-Core Frequency
  1.70 GHz (3.60 GHz) -
• Core architecture
  hybrid (big.LITTLE) hybrid (big.LITTLE)
• CPU Cores
  16 16
• CPU Threads
  24 24
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Base Frequency
  - 3.7 GHz
• Turbo Frequency (1 Core)
  - 5.3 GHz
• Turbo Frequency (16 Cores)
  - 5 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.

• DirectX Version
  12 -
• Execution units
  32 -
• Generation
  11 -
• GPU Frequency
  300 MHz -
• GPU name
  Intel UHD Graphics 770 None
• GPU Turbo
  1550 MHz -
• Max. displays
  3 -
• Max. GPU Memory
  64 GB -
• Release date
  Q4/2021 -
• Shader
  256 -
• Technology
  10 nm -

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

• AV1
  Decode Decode
• H.264 / AVC
  Decode / Encode Decode / Encode
• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• JPEG
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• VP8
  Decode / Encode Decode
• VP9
  Decode / Encode Decode / Encode

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

• ECC
  No No
• Max. Memory
  128 GB 256 GB
• Memory Bandwidth
  76.8 GB/s -
• Memory channels
  2 (Dual Channel) 2
• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 DDR4-3200DDR5-4800
• PCIe
  5.0 x 20 -
• PCIe lanes
  - 20
• PCIe version
  - 5.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i9-12900HX and Intel Core i9-12900KF 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
  100 °C 100 °C
• TDP (PL1, legacy label)
  55 W 125 W
• TDP (PL2)
  157 W 228 W / 56 s
• TDP down
  45 W -
• TDP up
  86 W -

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

• Architecture
  Alder Lake H Alder Lake S
• Chip design
  Monolithic -
• Documents
  Technical data sheet -
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ SSE4.1, SSE4.2, AVX2, AVX2+
• L2-Cache
  14 MB 3.75 MB
• L3-Cache
  30 MB 30 MB
• Operating systems
  Windows 10, Windows 11, Linux -
• Part Number
  - BX8071512900KF
• Release date
  Q2/2022 Q4/2021
• Release price
  606 $ -
• Socket
  BGA 1744 LGA 1700
• Technology
  10 nm 10 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d