Intel Core i7-8700K vs AMD Ryzen 9 3950X. Specifications, performance, tests

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

• CPU group
  Intel Core i 8000 AMD Ryzen 3000
• Family
  Intel Core i7 Ryzen
• Generation
  8 3
• Predecessor
  Intel Core i7-7700K -
• Segment
  Desktop / Server Desktop / Server
• Successor
  Intel Core i7-9700KF AMD Ryzen 9 5950X
• Form Factor
  - Desktops / Boxed Processor
• Series
  - Ryzen 3000 Series

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

• Base Frequency
  3.7 GHz 3.5 GHz
• Core architecture
  normal normal
• CPU Cores
  6 16
• CPU Threads
  12 32
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.7 GHz 4.7 GHz
• Turbo Frequency (6 Cores)
  4.3 GHz -
• Max. Boost Clock
  - 4.7 GHz
• Turbo Frequency (16 Cores)
  - 4 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.

• DirectX Version
  12 -
• Execution units
  24 -
• Generation
  9.5 -
• GPU Frequency
  350 MHz -
• GPU name
  Intel UHD Graphics 630 None
• GPU Turbo
  1200 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
  Decode / Encode No
• h265 / HEVC (8 bit)
  Decode / Encode No
• h265 / HEVC (10 bit)
  Decode / Encode No
• JPEG
  Decode / Encode No
• VC-1
  Decode No
• VP8
  Decode / Encode No
• VP9
  Decode / Encode No

Types, channel quantity of RAM supported by AMD Ryzen 9 3950X and Intel Core i7-8700K. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-8700K and AMD Ryzen 9 3950X 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
• TDP (PL1, legacy label)
  95 W 105 W
• TDP (PL2)
  - 142 W
• Default TDP
  - 105 W

Architecture, interfaces, additional instructions supported by Intel Core i7-8700K and AMD Ryzen 9 3950X, virtual machine technologies and process technology.

• Architecture
  Coffee Lake S Matisse (Zen 2)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L2-Cache
  - 8 MB
• L3-Cache
  12 MB 64 MB
• Release date
  Q4/2017 2019-07-07
• Socket
  LGA 1151-2 AM4
• Technology
  14 nm TSMC 7nm FinFET
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• Codename
  - Matisse
• L1-Cache
  - 1 MB
• Manufacturer product ID (boxed)
  - 100-100000051WOF
• Manufacturer product ID (tray)
  - 100-000000051
• Operating systems
  - Windows 11 - 64-Bit Edition / Windows 10 - 64-Bit Edition / RHEL x86 64-Bit / Ubuntu x86 64-Bit
• Thermal Solution (PIB)
  - Cooler Not Included, Liquid Cooling Recommended