AMD Ryzen 7 5800X3D vs AMD Ryzen 9 7945HX. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 5000 AMD Ryzen 7045
• Family
  Ryzen Ryzen
• Form Factor
  Desktops / Boxed Processor Laptops / Desktops
• Generation
  4 6
• Segment
  Desktop Mobile
• Series
  Ryzen 5000 Series Ryzen 7000 Series

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

• Base Frequency
  3.4 GHz 2.5 GHz
• Core architecture
  normal normal
• CPU Cores
  8 16
• CPU Threads
  16 32
• Hyperthreading / SMT
  Yes Yes
• Max. Boost Clock
  4.5 GHz 5.4 GHz
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.5 GHz 5.4 GHz
• Turbo Frequency (8 Cores)
  4.2 GHz -
• Core Configuration
  - 16x Zen 4

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 610M
• DirectX Version
  - 12
• Execution units
  - 2
• Generation
  - 9
• GPU Frequency
  - 2200 MHz
• GPU Turbo
  - 2200 MHz
• Graphics Cores
  - 2
• Max. displays
  - 3
• Max. GPU Memory
  - 8 GB
• Release date
  - Q3/2022
• Shader
  - 128
• Technology
  - 6 nm

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

• AV1
  No Decode
• 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 9 7945HX and AMD Ryzen 7 5800X3D. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB 128 GB
• Memory channels
  2 2
• Memory type
  DDR4 DDR5
• PCIe
  PCIe 4.0 PCIe 5.0
• Memory Bandwidth
  - 83.2 GB/s

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 7 5800X3D and AMD Ryzen 9 7945HX 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 55 W
• Maximum Operating Temperature
  90 °C 100 °C
• TDP (PL1, legacy label)
  105 W -
• TDP up
  - 75 W
• Configurable TDP
  - 55-75 W
• TDP (PL1 / PBP, legacy combined label)
  - 55 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 5800X3D and AMD Ryzen 9 7945HX, virtual machine technologies and process technology.

• Architecture
  Vermeer (Zen 3) Dragon Range (Zen 4)
• Codename
  Vermeer Dragon Range
• 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 MB 16 MB
• L3-Cache
  96 MB 64 MB
• Part Number
  - 100-000000870
• Release date
  2022-04-20 2023-02-28
• Socket
  AM4 FL1
• Technology
  TSMC 7nm FinFET TSMC 5nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Chip design
  - Chiplet
• Documents
  - Technical data sheet
• Operating systems
  - Windows 10, Windows 11, Linux