AMD Ryzen 7 8840HX vs AMD Ryzen 9 7945HX. Specifications

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

• Family
  Ryzen Ryzen
• Form Factor
  Laptops / Desktops Laptops / Desktops
• Segment
  Mobile Mobile
• Series
  Ryzen 8000 Series Ryzen 7000 Series
• CPU group
  - AMD Ryzen 7045
• Generation
  - 6

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

• Base Frequency
  2.9 GHz 2.5 GHz
• CPU Cores
  12 16
• CPU Threads
  24 32
• Max. Boost Clock
  5.1 GHz 5.4 GHz
• Overclocking
  Yes Yes
• Core architecture
  - normal
• Core Configuration
  - 16x Zen 4
• Hyperthreading / SMT
  - Yes
• Turbo Frequency (1 Core)
  - 5.4 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 Frequency
  2200 MHz 2200 MHz
• GPU name
  AMD Radeon 610M AMD Radeon 610M
• Graphics Cores
  2 2
• DirectX Version
  - 12
• Execution units
  - 2
• Generation
  - 9
• GPU Turbo
  - 2200 MHz
• 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
  - Decode
• H.264 / AVC
  - Decode / Encode
• h265 / HEVC (8 bit)
  - Decode / Encode
• h265 / HEVC (10 bit)
  - Decode / Encode
• JPEG
  - Decode / Encode
• VC-1
  - Decode
• VP8
  - Decode / Encode
• VP9
  - Decode / Encode

Types, channel quantity of RAM supported by AMD Ryzen 9 7945HX and AMD Ryzen 7 8840HX. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  - Yes

Compare the TDP requirements of TDP AMD Ryzen 7 8840HX 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.

• Configurable TDP
  45-75 W 55-75 W
• Default TDP
  55 W 55 W
• Maximum Operating Temperature
  100 °C 100 °C
• TDP (PL1 / PBP, legacy combined label)
  - 55 W
• TDP up
  - 75 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 8840HX and AMD Ryzen 9 7945HX, virtual machine technologies and process technology.

• Codename
  Dragon Range Dragon Range
• L2-Cache
  12 MB 16 MB
• L3-Cache
  64 MB 64 MB
• Official source
  https://www.amd.com/en/products/processors/laptop/ryzen/8000-series/amd-ryzen-7-8840hx.html https://www.amd.com/en/products/processors/laptop/ryzen/7000-series/amd-ryzen-9-7945hx.html
• Release date
  2025-04-23 2023-02-28
• Socket
  FL1 FL1
• Technology
  TSMC 5nm FinFET TSMC 5nm FinFET
• Verified on
  2026-09-30 2026-09-30
• Architecture
  - Dragon Range (Zen 4)
• Chip design
  - Chiplet
• Documents
  - Technical data sheet
• Instruction set (ISA)
  - x86-64 (64 bit)
• ISA extensions
  - SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• Operating systems
  - Windows 10, Windows 11, Linux
• Part Number
  - 100-000000870
• Verification scope
  - Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved.
• Virtualization
  - AMD-V, SVM