AMD Epyc 7551
AMD Phenom II X3 B73
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AMD Epyc 7551 vs AMD Phenom II X3 B73

Overall score
star star star star star
Released
Q3/2017
Released
Q3/2009
Overall score
star star star star star

Which one of the central processing units is better: AMD Epyc 7551 or AMD Phenom II X3 B73? On this page we compare the technical data and benchmark results of different CPUs.

The AMD Epyc 7551 has 32 cores and 64 threads with maximum working frequency of 3.00 GHz. The AMD Epyc 7551 was released on Q3/2017.

The AMD Phenom II X3 B73 has 3 cores with 64 threads and 3.00 GHz of frequency. The AMD Phenom II X3 B73 was released on Q3/2009.

Differences
Reasons to consider
AMD Epyc 7551
Report a bug
  • More number of cores
    32 left arrow 3
    2 times more threads
Reasons to consider
AMD Phenom II X3 B73
Report a bug
  • Higher clock speed
    2.80 GHz left arrow 2.00 GHz
    Around 29% better clock speed
  • Performance per watt
    95 W left arrow 180 W
    About 0.53 times less performance per watt
Specifications
Complete list of technical specifications
AMD Epyc 7551 AMD Epyc 7551
AMD Phenom II X3 B73 AMD Phenom II X3 B73
CPU generation and family

Let's find out which one of AMD Epyc 7551 and AMD Phenom II X3 B73 is of a more recent generation, and what segment it belongs to.

  • Name
    AMD Epyc 7551 left arrow AMD Phenom II X3 B73
  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    AMD Epyc left arrow AMD Phenom II
  • Generation
    1 left arrow 3
  • CPU group
    AMD Epyc 7001 left arrow AMD Phenom II - 700
  • Successor
    AMD Epyc 7552 left arrow --
CPU Cores and Base Frequency

In this block we are going to compare AMD Epyc 7551 vs AMD Phenom II X3 B73 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 left arrow 2.80 GHz
  • CPU Cores
    32 left arrow 3
  • Turbo (1 Core)
    3.00 GHz left arrow No turbo
  • CPU Threads
    64 left arrow 3
  • Hyperthreading
    Yes left arrow No
  • Overclocking
    No left arrow Yes
  • Core architecture
    normal left arrow normal
Internal Graphics

Common specifications for integrated graphics cards in AMD Epyc 7551 and AMD Phenom II X3 B73 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

  • GPU name
    no iGPU left arrow no iGPU
  • GPU (Turbo)
    No turbo left arrow No turbo
Hardware codec support

Let's compare the support of video codecs between AMD Epyc 7551 and AMD Phenom II X3 B73. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    No left arrow No
  • VP9
    No left arrow No
  • VP8
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    No left arrow No
  • VC-1
    No left arrow No
  • JPEG
    No left arrow No
Memory & PCIe

To choose the best model between AMD Epyc 7551 and AMD Phenom II X3 B73 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
    DDR4-2666 left arrow DDR2-1066
  • ECC
    Yes left arrow No
  • Memory channels
    8 left arrow 2
  • PCIe version
    3.0 left arrow
  • PCIe lanes
    128 left arrow
Encryption

AES-NI encryption support for CPUs AMD Epyc 7551 and AMD Phenom II X3 B73.

  • AES-NI
    Yes left arrow No
Thermal Management

Let's find out what TDP value would be better for AMD Epyc 7551 or AMD Phenom II X3 B73? 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)
    180 W left arrow 95 W
Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Epyc 7551 and AMD Phenom II X3 B73 CPUs along with a list of ISA extensions.

  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • Virtualization
    AMD-V, SVM left arrow AMD-V
  • ISA extensions
    SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 left arrow SSE3, SSE4a
  • L3-Cache
    64.00 MB left arrow 6.00 MB
  • Architecture
    Naples (Zen) left arrow Heka (K10)
  • Technology
    14 nm left arrow 45 nm
  • Socket
    SP3 left arrow AM3
  • Release date
    Q3/2017 left arrow Q3/2009
Devices using this processor

List of devices based on AMD Epyc 7551 and AMD Phenom II X3 B73.

  • Used in
    Unknown left arrow Unknown
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