AMD Ryzen 7 4800H vs AMD Ryzen 9 7945HX. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  AMD Ryzen AMD Ryzen 9
• Generation
  3 6
• CPU group
  AMD Ryzen 4000H AMD Ryzen 7045

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
  2.90 GHz 2.50 GHz
• Overclocking
  No Yes
• 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 7 Graphics (Renoir) AMD Radeon 610M Graphics
• GPU frequency
  1.60 GHz 0.40 GHz
• GPU (Turbo)
  No turbo 2.20 GHz
• Execution units
  7 2
• Shader
  448 128
• Max. GPU Memory
  2 GB 8 GB
• Max. displays
  3 3
• Generation
  9 9
• Technology
  7 nm 6 nm
• Release date
  Q1/2020 Q3/2022

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 Decode
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by AMD Ryzen 9 7945HX and AMD Ryzen 7 4800H. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200 DDR5-5200
• Max. Memory
  32 GB 128 GB
• ECC
  Yes Yes
• Memory channels
  2 2 (Dual Channel)

Compare the TDP requirements of TDP AMD Ryzen 7 4800H and AMD Ryzen 9 7945HX to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP up
  54 W 75 W
• TDP down
  35 W --
• Tjunction max.
  105 °C 100 °C

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 4800H and AMD Ryzen 7 4800H, 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,FMA3, AVX2, AVX512
• L2-Cache
  -- 16.00 MB
• L3-Cache
  8.00 MB 64.00 MB
• Architecture
  Renoir (Zen 2) Dragon Range (Zen 4)
• Technology
  7 nm 5 nm
• Socket
  FP6 FL1
• Release date
  Q1/2020 Q1/2023
• Part Number
  -- 100-000000870