Intel Core i5-9400 vs AMD Ryzen 9 3900. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i5 AMD Ryzen
• Generation
  9 3
• CPU group
  Intel Core i 9000 AMD Ryzen 3000
• Predecessor
  Intel Core i5-8400 --
• Successor
  Intel Core i5-10400 AMD Ryzen 9 5900

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  2.90 GHz 3.10 GHz
• CPU Cores
  6 12
• Turbo (1 Core)
  4.10 GHz 4.30 GHz
• CPU Threads
  6 24
• Hyperthreading
  No Yes
• Overclocking
  No Yes
• Core architecture
  normal normal

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• GPU name
  Intel UHD Graphics 630 no iGPU
• GPU frequency
  0.35 GHz
• GPU (Turbo)
  1.05 GHz No turbo
• 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

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

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

Types, channel quantity of RAM supported by AMD Ryzen 9 3900 and Intel Core i5-9400. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-2666 DDR4-3200
• Max. Memory
  128 GB 128 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  3.0 4.0
• PCIe lanes
  16 20

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i5-9400 and AMD Ryzen 9 3900 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  65 W 65 W
• Tjunction max.
  100 °C 95 °C

Architecture, interfaces, additional instructions supported by Intel Core i5-9400 and Intel Core i5-9400, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L3-Cache
  9.00 MB 64.00 MB
• Architecture
  Coffee Lake S Refresh Matisse (Zen 2)
• Technology
  14 nm 7 nm
• Socket
  LGA 1151-2 AM4
• Release date
  Q2/2019 Q3/2019