AMD Ryzen 9 4900U vs AMD Ryzen 9 5900HX. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  AMD Ryzen AMD Ryzen
• Generation
  3 4
• CPU group
  AMD Ryzen 4000U AMD Ryzen 5000H

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
  2.00 GHz 3.30 GHz
• CPU Cores
  8 8
• Turbo (1 Core)
  4.40 GHz 4.60 GHz
• CPU Threads
  16 16
• Turbo (8 Cores)
  3.40 GHz 4.20 GHz
• Hyperthreading
  Yes Yes
• Overclocking
  No No
• 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
  AMD Radeon 8 Graphics (Renoir) AMD Radeon 8 Graphics (Renoir)
• GPU frequency
  1.75 GHz 1.90 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  8 8
• Shader
  512 512
• Max. GPU Memory
  2 GB 2 GB
• Max. displays
  3 3
• Generation
  9 9
• DirectX Version
  12 12
• Technology
  7 nm 7 nm
• Release date
  Q1/2020 Q1/2020

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

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

Types, channel quantity of RAM supported by AMD Ryzen 9 5900HX and AMD Ryzen 9 4900U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200LPDDR4-4266 DDR4-3200LPDDR4-4266
• Max. Memory
  64 GB 64 GB
• ECC
  Yes No
• Memory channels
  2 2
• PCIe version
  3.0 3.0
• PCIe lanes
  12 12

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 4900U and AMD Ryzen 9 5900HX to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 45 W
• TDP up
  25 W 54 W
• TDP down
  10 W 35 W
• Tjunction max.
  105 °C 105 °C

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 4900U and AMD Ryzen 9 4900U, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  AMD-V, SVM AMD-V, SVM
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
• L2-Cache
  -- 4.00 MB
• L3-Cache
  8.00 MB 16.00 MB
• Architecture
  Renoir (Zen 2) Cezanne (Zen 3)
• Technology
  7 nm 7 nm
• Socket
  FP6 FP6
• Release date
  Q1/2020 Q2/2021