Intel Core i9-12900K vs Intel Core i7-7800X. 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 i7
• Generation
  12 7
• CPU group
  Intel Core i 12000 Intel Core i 7000X
• 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 3.50 GHz
• CPU Cores
  16 6
• Turbo (1 Core)
  5.30 GHz 4.20 GHz
• CPU Threads
  24 12
• Hyperthreading
  Yes Yes
• Overclocking
  Yes Yes
• 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 Iris Xe Graphics 32 (Alder Lake S) no iGPU
• GPU frequency
  0.40 GHz
• GPU (Turbo)
  1.45 GHz No turbo
• Execution units
  32
• Shader
  256
• Max. GPU Memory
  16 GB --
• Max. displays
  4
• Generation
  12
• DirectX Version
  12
• Technology
  10 nm
• Release date
  Q4/2021

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

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

Types, channel quantity of RAM supported by Intel Core i7-7800X and Intel Core i9-12900K. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800 DDR4-2400
• Max. Memory
  256 GB
• ECC
  No No
• Memory channels
  2 4
• PCIe version
  5.0 3.0
• PCIe lanes
  20 28

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i9-12900K and Intel Core i7-7800X to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  125 W 140 W
• TDP (PL2)
  228 W / 56 s --
• Tjunction max.
  100 °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 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 --
• L3-Cache
  30.00 MB 8.00 MB
• Architecture
  Alder Lake S Skylake X
• Technology
  10 nm 14 nm
• Socket
  LGA 1700 LGA 2066
• Release date
  Q4/2021 Q2/2017
• Part Number
  BX8071512900K --