AMD Epyc 7742 vs Intel Core i9-11900K

Let's find out which one of Intel Core i9-11900K and AMD Epyc 7742 is of a more recent generation, and what segment it belongs to.

• Name
  Intel Core i9-11900K AMD Epyc 7742
• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i9 AMD Epyc
• Generation
  11 2
• CPU group
  Intel Core i 11000 AMD Epyc 7002
• Predecessor
  Intel Core i9-10900K --
• Successor
  Intel Core i9-12900K --

In this block we are going to compare Intel Core i9-11900K vs AMD Epyc 7742 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

• Frequency
  3.50 GHz 2.25 GHz
• CPU Cores
  8 64
• Turbo (1 Core)
  5.30 GHz 3.40 GHz
• CPU Threads
  16 128
• Hyperthreading
  Yes Yes
• Overclocking
  Yes No
• Core architecture
  normal normal

Common specifications for integrated graphics cards in Intel Core i9-11900K and AMD Epyc 7742 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

• GPU name
  Intel UHD Graphics 750 no iGPU
• GPU frequency
  0.35 GHz
• GPU (Turbo)
  1.30 GHz No turbo
• Execution units
  32
• Shader
  256
• Max. displays
  3
• Generation
  12
• DirectX Version
  12
• Technology
  14 nm
• Release date
  Q1/2021

Let's compare the support of video codecs between Intel Core i9-11900K and AMD Epyc 7742. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

• 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

To choose the best model between Intel Core i9-11900K and AMD Epyc 7742 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

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

AES-NI encryption support for CPUs Intel Core i9-11900K and AMD Epyc 7742.

• AES-NI
  Yes Yes

Let's find out what TDP value would be better for Intel Core i9-11900K or AMD Epyc 7742? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

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

Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core i9-11900K and AMD Epyc 7742 CPUs along with a list of ISA extensions.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L2-Cache
  4.00 MB --
• L3-Cache
  16.00 MB 256.00 MB
• Architecture
  Rocket Lake S Rome (Zen 2)
• Technology
  14 nm 7 nm
• Socket
  LGA 1200 SP3
• Release date
  Q1/2021 Q3/2019

List of devices based on Intel Core i9-11900K and AMD Epyc 7742.

• Used in
  Unknown Unknown