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

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

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

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  3.8 GHz 3.2 GHz
• Core architecture
  normal normal
• Core Configuration
  12x -
• CPU Cores
  12 6
• CPU Threads
  24 12
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  4.6 GHz 4.6 GHz
• Turbo Frequency (12 Cores)
  4.2 GHz -
• Turbo Frequency (6 Cores)
  - 4.3 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
  None Intel UHD Graphics 630
• Graphics verification source
  https://www.amd.com/en/products/specifications/processors.html -
• DirectX Version
  - 12
• Execution units
  - 24
• Generation
  - 9.5
• GPU Frequency
  - 350 MHz
• GPU Turbo
  - 1150 MHz
• Max. displays
  - 3
• Max. GPU Memory
  - 64 GB
• Release date
  - Q4/2017
• Shader
  - 192
• Technology
  - 14 nm

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

• AV1
  No No
• H.264 / AVC
  No Decode / Encode
• h265 / HEVC (8 bit)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode / Encode
• JPEG
  No Decode / Encode
• VC-1
  No Decode
• VP8
  No Decode / Encode
• VP9
  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.

• ECC
  Yes No
• Max. Memory
  128 GB 128 GB
• Memory Bandwidth
  51.2 GB/s -
• Memory channels
  2 2
• Memory type
  DDR4-3200 DDR4-2666
• PCIe
  4.0 x 20 -
• PCIe lanes
  - 16
• PCIe version
  - 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 3900X and Intel Core i7-8700 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  95 °C 100 °C
• TDP (PL1, legacy label)
  105 W 65 W
• TDP (PL2)
  142 W -

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 3900X and Intel Core i7-8700, virtual machine technologies and process technology.

• Architecture
  Matisse (Zen 2) Coffee Lake S
• 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
• Release date
  Q3/2019 Q4/2017
• Socket
  AM4 LGA 1151-2
• Technology
  7 nm 14 nm
• Virtualization
  AMD-V, SVM VT-x, VT-x EPT, VT-d