AMD Ryzen 9 3900X vs AMD Ryzen 5 4600U. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 3000 AMD Ryzen 4000U
• Family
  Ryzen Ryzen
• Form Factor
  Desktops / Boxed Processor Laptops / Desktops
• Generation
  3 3
• Segment
  Desktop / Server Mobile
• Series
  Ryzen 3000 Series Ryzen 4000 Series
• Successor
  AMD Ryzen 9 5900X -

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 2.1 GHz
• Core architecture
  normal normal
• Core Configuration
  12x -
• CPU Cores
  12 6
• CPU Threads
  24 12
• Hyperthreading / SMT
  Yes Yes
• Max. Boost Clock
  4.6 GHz 4 GHz
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  4.6 GHz 4 GHz
• Turbo Frequency (12 Cores)
  4.2 GHz -
• Turbo Frequency (6 Cores)
  - 3.6 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 AMD Radeon Graphics
• DirectX Version
  - 12
• Execution units
  - 6
• Generation
  - 9
• GPU Frequency
  - 1500 MHz
• GPU Turbo
  - No turbo
• Graphics Cores
  - 6
• Max. displays
  - 3
• Max. GPU Memory
  - 2 GB
• Release date
  - Q1/2020
• Shader
  - 384
• Technology
  - 7 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 AMD Ryzen 5 4600U and AMD Ryzen 9 3900X. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB 64 GB
• Memory Bandwidth
  51.2 GB/s -
• Memory channels
  2 2
• Memory type
  DDR4 DDR4 - Up to 3200 / LPDDR4 - Up to 4266
• PCIe
  PCIe 4.0 x16 PCIe 3.0
• System Memory Specification
  3200 -
• PCIe lanes
  - 12
• PCIe version
  - 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 3900X and AMD Ryzen 5 4600U Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Default TDP
  105 W 15 W
• Maximum Operating Temperature
  95 °C 105 °C
• TDP (PL1, legacy label)
  105 W 15 W
• TDP (PL2)
  142 W -
• TDP down
  - 10 W
• TDP up
  - 25 W
• Configurable TDP
  - 10-25 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 3900X and AMD Ryzen 5 4600U, virtual machine technologies and process technology.

• Architecture
  Matisse (Zen 2) Renoir (Zen 2)
• Codename
  Matisse Renoir
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L1-Cache
  0.75 MB -
• L2-Cache
  6 MB 3 MB
• L3-Cache
  64 MB 8 MB
• Manufacturer product ID (boxed)
  100-100000023BOX -
• Manufacturer product ID (MPK)
  100-100000023MPK -
• Manufacturer product ID (tray)
  100-000000023 100-000000105
• Operating systems
  Windows 10 - 64-Bit Edition / RHEL x86 64-Bit / Ubuntu x86 64-Bit Windows 11 - 64-Bit Edition / Windows 10 - 64-Bit Edition / RHEL x86 64-Bit / Ubuntu x86 64-Bit
• Release date
  2019-07-07 2020-01-06
• Socket
  AM4 FP6
• Technology
  TSMC 7nm FinFET TSMC 7nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM