AMD Epyc 7742 vs Intel Core i9-12900KF. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  AMD Epyc Intel Core i9
• Generation
  2 12
• CPU group
  AMD Epyc 7002 Intel Core i 12000
• Predecessor
  -- Intel Core i9-11900KF

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
  2.25 GHz 3.70 GHz
• CPU Cores
  64 16
• Turbo (1 Core)
  3.40 GHz 5.30 GHz
• CPU Threads
  128 24
• Hyperthreading
  Yes Yes
• Overclocking
  No Yes
• Core architecture
  normal hybrid (big.LITTLE)
• 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
  no iGPU Intel Iris Xe Graphics 32 (Alder Lake S)
• GPU frequency
  0.40 GHz
• GPU (Turbo)
  No turbo 1.45 GHz
• 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)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode / Encode
• h264
  No Decode / Encode
• VP9
  No Decode / Encode
• VP8
  No Decode
• AV1
  No Decode
• AVC
  No Decode / Encode
• VC-1
  No Decode
• JPEG
  No Decode / Encode

Types, channel quantity of RAM supported by Intel Core i9-12900KF and AMD Epyc 7742. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200 DDR4-3200DDR5-4800
• Max. Memory
  256 GB
• ECC
  Yes No
• Memory channels
  8 2
• PCIe version
  4.0 5.0
• PCIe lanes
  128 20

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Epyc 7742 and Intel Core i9-12900KF to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  225 W 125 W
• TDP (PL2)
  -- 228 W / 56 s
• Tjunction max.
  -- 100 °C

Architecture, interfaces, additional instructions supported by AMD Epyc 7742 and AMD Epyc 7742, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  AMD-V, SVM VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4.1, SSE4.2, AVX2, AVX2+
• L2-Cache
  -- 3.75 MB
• L3-Cache
  256.00 MB 30.00 MB
• Architecture
  Rome (Zen 2) Alder Lake S
• Technology
  7 nm 10 nm
• Socket
  SP3 LGA 1700
• Release date
  Q3/2019 Q4/2021
• Part Number
  -- BX8071512900KF