AMD Ryzen 7 6800U vs AMD Ryzen 9 7945HX. Specifications, performance, tests

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

• Family
  AMD Ryzen AMD Ryzen 9
• CPU group
  AMD Ryzen 6000U AMD Ryzen 7045
• Segment
  Mobile Mobile
• Generation
  5 6
• Predecessor
  AMD Ryzen 7 5800U --

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.

• CPU Cores / Threads
  8 / 16 16 / 32
• Core architecture
  normal normal
• Frequency
  2.70 GHz 2.50 GHz
• Overclocking
  No Yes

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 RX 680M AMD Radeon 610M Graphics
• GPU frequency
  2.20 GHz 0.40 GHz
• GPU (Turbo)
  No turbo 2.20 GHz
• Execution units
  12 2
• Shader
  768 128
• Max. GPU Memory
  8 GB 8 GB
• Max. displays
  3 3
• Generation
  9 9
• Direct X
  12 12
• Technology
  6 nm 6 nm
• Release date
  Q1/2022 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
• VP8
  Decode / Encode Decode / Encode
• VP9
  Decode / Encode Decode / Encode
• AV1
  Decode 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 6800U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR5-4800LPDDR5-6400 DDR5-5200
• Max. Memory
  64 GB 128 GB
• Memory channels
  2 2 (Dual Channel)
• ECC
  No Yes
• PCIe
  4.0 x 12 5.0 x 28
• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 7 6800U and AMD Ryzen 9 7945HX to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP up
  28 W 75 W
• Tjunction max.
  105 °C 100 °C

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 6800U and AMD Ryzen 7 6800U, virtual machine technologies and process technology.

• 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,FMA3, AVX2, AVX512
• L2-Cache
  4.00 MB 16.00 MB
• L3-Cache
  16.00 MB 64.00 MB
• Architecture
  Rembrandt (Zen 3+) Dragon Range (Zen 4)
• Technology
  6 nm 5 nm
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Socket
  FP7 FL1
• Release date
  Q1/2022 Q1/2023
• Part Number
  -- 100-000000870