AMD Ryzen 9 3900X vs Intel Core i7-8700. Specifications, performance, tests

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

• Family
  AMD Ryzen Intel Core i7
• CPU group
  AMD Ryzen 3000 Intel Core i 8000
• Segment
  Desktop / Server Desktop / Server
• Generation
  3 8
• Predecessor
  -- Intel Core i7-7700
• Successor
  AMD Ryzen 9 5900X Intel Core i7-9700

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.

• Core architecture
  normal normal
• Overclocking
  Yes No
• Frequency
  3.80 GHz 3.20 GHz

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
  no iGPU Intel UHD Graphics 630
• GPU frequency
  -- 0.35 GHz
• GPU (Turbo)
  No turbo 1.15 GHz
• Execution units
  -- 24
• Shader
  -- 192
• Max. GPU Memory
  -- 64 GB
• Max. displays
  -- 3
• Generation
  -- 9.5
• 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)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode / Encode
• h264
  No Decode / Encode
• VP8
  No Decode / Encode
• VP9
  No Decode / Encode
• AV1
  No No
• AVC
  No Decode / Encode
• VC-1
  No Decode
• JPEG
  No Decode / Encode

Types, channel quantity of RAM supported by Intel Core i7-8700 and AMD Ryzen 9 3900X. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200 DDR4-2666
• Max. Memory
  128 GB 128 GB
• Memory channels
  2 2
• ECC
  Yes No

Compare the TDP requirements of TDP AMD Ryzen 9 3900X and Intel Core i7-8700 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  105 W 65 W
• TDP (PL2)
  142 W --
• Tjunction max.
  95 °C 100 °C

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 3900X and AMD Ryzen 9 3900X, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4.1, SSE4.2, AVX2
• L2-Cache
  6.00 MB --
• L3-Cache
  64.00 MB 12.00 MB
• Architecture
  Matisse (Zen 2) Coffee Lake S
• Technology
  7 nm 14 nm
• Virtualization
  AMD-V, SVM VT-x, VT-x EPT, VT-d
• Socket
  AM4 LGA 1151-2
• Release date
  Q3/2019 Q4/2017