Intel Core i9-7900X vs Intel Core i9-12900KS. Specifications, performance, tests

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

• CPU group
  Intel Core i 7000X Intel Core i 12000
• Family
  Intel Core i9 Intel Core i9
• Generation
  7 12
• Segment
  Desktop / Server 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
• B-Core
  - 8x Gracemont
• Base Frequency
  3.3 GHz 3.2 GHz
• Core architecture
  normal hybrid (big.LITTLE)
• CPU Cores
  10 16
• CPU Threads
  20 24
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.3 GHz 5.5 GHz
• Turbo Frequency (10 Cores)
  4 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.

• GPU name
  None Intel UHD Graphics 770
• DirectX Version
  - 12
• Execution units
  - 32
• Generation
  - 11
• GPU Frequency
  - 300 MHz
• GPU Turbo
  - 1450 MHz
• Max. displays
  - 3
• 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
  No Decode
• H.264 / AVC
  No Decode / Encode
• h265 / HEVC (8 bit)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode / Encode
• JPEG
  No Decode / Encode
• VC-1
  No Decode
• VP8
  No Decode / Encode
• VP9
  No Decode / Encode

Types, channel quantity of RAM supported by Intel Core i9-12900KS and Intel Core i9-7900X. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  - 128 GB
• Memory channels
  4 2
• Memory type
  DDR4-2666 DDR4-3200DDR5-4800
• PCIe lanes
  44 -
• PCIe version
  3.0 -
• PCIe
  - 5.0 x 20

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i9-7900X and Intel Core i9-12900KS 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
• TDP (PL1, legacy label)
  140 W 125 W
• TDP (PL2)
  - 241 W

Architecture, interfaces, additional instructions supported by Intel Core i9-7900X and Intel Core i9-12900KS, virtual machine technologies and process technology.

• Architecture
  Skylake X Alder Lake S
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4.1, SSE4.2, AVX2, AVX2+
• L2-Cache
  - 14 MB
• L3-Cache
  14 MB 30 MB
• Part Number
  - BX8071512900K
• Release date
  Q2/2017 Q2/2022
• Socket
  LGA 2066 LGA 1700
• Technology
  14 nm 10 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d