AMD Epyc 7543 vs AMD Epyc 7642

Let's find out which one of AMD Epyc 7543 and AMD Epyc 7642 is of a more recent generation, and what segment it belongs to.

• Name
  AMD Epyc 7543 AMD Epyc 7642
• Segment
  Desktop / Server Desktop / Server
• Family
  AMD Epyc AMD Epyc
• Generation
  3 2
• CPU group
  AMD Epyc 7003 AMD Epyc 7002
• Successor
  -- AMD Epyc 7643

In this block we are going to compare AMD Epyc 7543 vs AMD Epyc 7642 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
  2.80 GHz 2.30 GHz
• CPU Cores
  32 48
• Turbo (1 Core)
  3.70 GHz 3.30 GHz
• CPU Threads
  64 96
• Hyperthreading
  Yes Yes
• Overclocking
  No No
• Core architecture
  normal normal

Common specifications for integrated graphics cards in AMD Epyc 7543 and AMD Epyc 7642 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

• GPU name
  no iGPU no iGPU
• GPU (Turbo)
  No turbo No turbo

Let's compare the support of video codecs between AMD Epyc 7543 and AMD Epyc 7642. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

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

To choose the best model between AMD Epyc 7543 and AMD Epyc 7642 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
• ECC
  Yes Yes
• Memory channels
  8 8
• PCIe version
  4.0 4.0
• PCIe lanes
  128 128

AES-NI encryption support for CPUs AMD Epyc 7543 and AMD Epyc 7642.

• AES-NI
  Yes Yes

Let's find out what TDP value would be better for AMD Epyc 7543 or AMD Epyc 7642? 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)
  225 W 225 W
• TDP up
  240 W --

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Epyc 7543 and AMD Epyc 7642 CPUs along with a list of ISA extensions.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  AMD-V, SVM AMD-V, SVM
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L3-Cache
  256.00 MB 256.00 MB
• Architecture
  Milan (Zen 3) Rome (Zen 2)
• Technology
  7 nm 7 nm
• Socket
  SP3 SP3
• Release date
  Q1/2021 Q3/2019

List of devices based on AMD Epyc 7543 and AMD Epyc 7642.

• Used in
  Unknown Unknown