AMD Ryzen 9 3900
Intel Xeon D-2779
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AMD Ryzen 9 3900 vs Intel Xeon D-2779

Overall score
star star star star star
Released
Q3/2019
Released
Q1/2022
Overall score
star star star star star

Which one of the central processing units is better: AMD Ryzen 9 3900 or Intel Xeon D-2779? On this page we compare the technical data and benchmark results of different CPUs.

The AMD Ryzen 9 3900 has 12 cores and 24 threads with maximum working frequency of 4.30 GHz. The AMD Ryzen 9 3900 was released on Q3/2019.

The Intel Xeon D-2779 has cores with 24 threads and 4.30 GHz of frequency. The Intel Xeon D-2779 was released on Q1/2022.

Differences
Reasons to consider
AMD Ryzen 9 3900
Report a bug
  • Higher clock speed
    3.10 GHz left arrow 2.50 GHz
    Around -24% better clock speed
  • Performance per watt
    65 W left arrow 126 W
    About 1.94 0.97 times less performance per watt
Reasons to consider
Intel Xeon D-2779
Report a bug
Performance tests
Real tests AMD Ryzen 9 3900 vs Intel Xeon D-2779
Specifications
Complete list of technical specifications
AMD Ryzen 9 3900 AMD Ryzen 9 3900
Intel Xeon D-2779 Intel Xeon D-2779
CPU generation and family

Let's find out which one of AMD Ryzen 9 3900 and Intel Xeon D-2779 is of a more recent generation, and what segment it belongs to.

  • Name
    AMD Ryzen 9 3900 left arrow Intel Xeon D-2779
  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    AMD Ryzen left arrow Intel Xeon D
  • Generation
    3 left arrow 4
  • CPU group
    AMD Ryzen 3000 left arrow Intel Xeon D-2700
  • Successor
    AMD Ryzen 9 5900 left arrow --
CPU Cores and Base Frequency

In this block we are going to compare AMD Ryzen 9 3900 vs Intel Xeon D-2779 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
    3.10 GHz left arrow 2.50 GHz
  • Overclocking
    Yes left arrow No
  • Core architecture
    normal left arrow normal
Internal Graphics

Common specifications for integrated graphics cards in AMD Ryzen 9 3900 and Intel Xeon D-2779 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 Ryzen 9 3900 and Intel Xeon D-2779. 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 Ryzen 9 3900 and Intel Xeon D-2779 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 left arrow DDR4-3200
  • Max. Memory
    128 GB left arrow 1024 GB
  • ECC
    No left arrow Yes
  • Memory channels
    2 left arrow 4 (Quad Channel)
Thermal Management

Let's find out what TDP value would be better for AMD Ryzen 9 3900 or Intel Xeon D-2779? 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 left arrow 126 W
  • Tjunction max.
    95 °C left arrow --
Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Ryzen 9 3900 and Intel Xeon D-2779 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 VT-x, VT-x EPT, VT-d
  • ISA extensions
    SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 left arrow SSE4.1, SSE4.2, AVX2, AVX-512
  • L2-Cache
    -- left arrow 25.00 MB
  • L3-Cache
    64.00 MB left arrow --
  • Architecture
    Matisse (Zen 2) left arrow Ice Lake
  • Technology
    7 nm left arrow 10 nm
  • Socket
    AM4 left arrow BGA 2579
  • Release date
    Q3/2019 left arrow Q1/2022
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