AMD Epyc 7663 vs Intel Core i5-8400B

Let's find out which one of AMD Epyc 7663 and Intel Core i5-8400B is of a more recent generation, and what segment it belongs to.

• Name
  AMD Epyc 7663 Intel Core i5-8400B
• Segment
  Desktop / Server Desktop / Server
• Family
  AMD Epyc Intel Core i5
• Generation
  3 8
• CPU group
  AMD Epyc 7003 Intel Core i 8000

In this block we are going to compare AMD Epyc 7663 vs Intel Core i5-8400B 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
  2.00 GHz 2.80 GHz
• CPU Cores
  56 6
• Turbo (1 Core)
  3.50 GHz 3.80 GHz
• CPU Threads
  112 6
• Hyperthreading
  Yes No
• Overclocking
  No No
• Core architecture
  normal normal

Common specifications for integrated graphics cards in AMD Epyc 7663 and Intel Core i5-8400B along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

• GPU name
  no iGPU Intel UHD Graphics 630
• GPU frequency
  0.35 GHz
• GPU (Turbo)
  No turbo 1.15 GHz
• Execution units
  24
• Shader
  192
• Max. GPU Memory
  -- 64 GB
• Max. displays
  3
• Generation
  9.5
• DirectX Version
  12
• Technology
  14 nm
• Release date
  Q4/2017

Let's compare the support of video codecs between AMD Epyc 7663 and Intel Core i5-8400B. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

• 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 / Encode
• AV1
  No No
• AVC
  No Decode / Encode
• VC-1
  No Decode
• JPEG
  No Decode / Encode

To choose the best model between AMD Epyc 7663 and Intel Core i5-8400B 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 DDR4-2666
• Max. Memory
  64 GB
• ECC
  Yes No
• Memory channels
  8 2
• PCIe version
  4.0 3.0
• PCIe lanes
  128 16

AES-NI encryption support for CPUs AMD Epyc 7663 and Intel Core i5-8400B.

• AES-NI
  Yes Yes

Let's find out what TDP value would be better for AMD Epyc 7663 or Intel Core i5-8400B? 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)
  240 W 65 W
• TDP down
  225 W --
• Tjunction max.
  -- 100 °C

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Epyc 7663 and Intel Core i5-8400B CPUs along with a list of ISA extensions.

• 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
• L3-Cache
  256.00 MB 9.00 MB
• Architecture
  Milan (Zen 3) Coffee Lake S
• Technology
  7 nm 14 nm
• Socket
  SP3 BGA 1440
• Release date
  Q1/2021 Q2/2018

List of devices based on AMD Epyc 7663 and Intel Core i5-8400B.

• Used in
  Unknown Unknown