AMD Ryzen 5 7640HS vs AMD Ryzen 5 PRO 8645HS. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 7040 -
• Family
  Ryzen Ryzen PRO
• Form Factor
  Laptops / Desktops Desktops / 1L Desktops / Laptops / Mobile Workstations
• Generation
  6 -
• Segment
  Mobile Mobile
• Series
  Ryzen 7000 Series Ryzen PRO 8000 Series

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

• Base Frequency
  4.3 GHz 4.3 GHz
• Core architecture
  normal -
• Core Configuration
  6x Zen 4 -
• CPU Cores
  6 6
• CPU Threads
  12 12
• Hyperthreading / SMT
  Yes -
• Max. Boost Clock
  5 GHz 5 GHz
• Overclocking
  No No
• Turbo Frequency (1 Core)
  5 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.

• DirectX Version
  12 -
• Execution units
  8 -
• Generation
  10 -
• GPU Frequency
  2600 MHz 2600 MHz
• GPU name
  AMD Radeon 760M AMD Radeon 760M
• GPU Turbo
  2600 MHz -
• Graphics Cores
  8 8
• Max. displays
  4 -
• Max. GPU Memory
  32 GB -
• Release date
  Q1/2023 -
• Shader
  512 -
• Technology
  4 nm -

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

• AV1
  Decode / Encode -
• H.264 / AVC
  Conflicting source values: Decode | Decode / Encode -
• h265 / HEVC (8 bit)
  Decode / Encode -
• h265 / HEVC (10 bit)
  Decode / Encode -
• JPEG
  Decode / Encode -
• VC-1
  Decode -
• VP8
  Decode -
• VP9
  Decode -

Types, channel quantity of RAM supported by AMD Ryzen 5 PRO 8645HS and AMD Ryzen 5 7640HS. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes -
• Max. Memory
  256 GB -
• Memory Bandwidth
  89.6 GB/s -
• Memory channels
  2 2
• Memory type
  DDR5 (FP7r2) / LPDDR5X (FP7-FP8) DDR5 (FP7r2) / LPDDR5X (FP7)
• PCIe
  PCIe 4.0 PCIe 4.0

• AES-NI
  Yes -

Compare the TDP requirements of TDP AMD Ryzen 5 7640HS and AMD Ryzen 5 PRO 8645HS 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
  35-54 W 35-54 W
• Default TDP
  35-54 W 45 W
• Maximum Operating Temperature
  100 °C 100 °C
• TDP (PL1 / PBP, legacy combined label)
  54 W -
• TDP down
  35 W -

Architecture, interfaces, additional instructions supported by AMD Ryzen 5 7640HS and AMD Ryzen 5 PRO 8645HS, virtual machine technologies and process technology.

• Architecture
  Phoenix (Zen 4) -
• Chip design
  Monolithic -
• Codename
  Phoenix Hawk Point
• Documents
  Technical data sheet -
• Instruction set (ISA)
  x86-64 (64 bit) -
• ISA extensions
  SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 -
• L2-Cache
  6 MB 6 MB
• L3-Cache
  16 MB 16 MB
• Operating systems
  Windows 10, Windows 11, Linux -
• Part Number
  100-000001130 -
• Release date
  2023-04-30 Q2/2024
• Socket
  FP7 / FP7r2 / FP8 FP7 / FP7r2
• Technology
  TSMC 4nm FinFET TSMC 4nm FinFET
• Virtualization
  AMD-V, SVM -
• Availability window (manufacturer)
  - Q2 2024
• Date evidence scope
  - Manufacturer-announced OEM/board availability window; exact first shipment is not established by this source.