AMD Athlon X4 845 vs AMD Epyc 7402

Let's find out which one of AMD Athlon X4 845 and AMD Epyc 7402 is of a more recent generation, and what segment it belongs to.

• Name
  AMD Athlon X4 845 AMD Epyc 7402
• Segment
  Desktop / Server Desktop / Server
• Family
  AMD Athlon AMD Epyc
• Generation
  2 2
• CPU group
  AMD Athlon X4 (Carizzo) AMD Epyc 7002

In this block we are going to compare AMD Athlon X4 845 vs AMD Epyc 7402 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 2.80 GHz
• CPU Cores
  4 24
• Turbo (1 Core)
  3.80 GHz 3.35 GHz
• CPU Threads
  4 48
• Hyperthreading
  No Yes
• Overclocking
  No No
• Core architecture
  normal normal

Common specifications for integrated graphics cards in AMD Athlon X4 845 and AMD Epyc 7402 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 Athlon X4 845 and AMD Epyc 7402. 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 Athlon X4 845 and AMD Epyc 7402 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
  DDR3-2133 DDR4-3200
• ECC
  Yes Yes
• Memory channels
  2 8
• PCIe version
  3.0 4.0
• PCIe lanes
  8 128

AES-NI encryption support for CPUs AMD Athlon X4 845 and AMD Epyc 7402.

• AES-NI
  No Yes

Let's find out what TDP value would be better for AMD Athlon X4 845 or AMD Epyc 7402? 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)
  65 W 180 W

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Athlon X4 845 and AMD Epyc 7402 CPUs along with a list of ISA extensions.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  None AMD-V, SVM
• ISA extensions
  SSE3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L3-Cache
  2.00 MB 128.00 MB
• Architecture
  Carizzo Rome (Zen 2)
• Technology
  28 nm 7 nm
• Socket
  FM2+ SP3
• Release date
  Q1/2016 Q3/2019

List of devices based on AMD Athlon X4 845 and AMD Epyc 7402.

• Used in
  Unknown Unknown