AMD Ryzen 7 7745HX vs AMD Ryzen 9 7940HS. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 7045 AMD Ryzen 7040
• Family
  Ryzen Ryzen
• Form Factor
  Laptops / Desktops Laptops / Desktops
• Generation
  6 6
• Segment
  Mobile Mobile
• Series
  Ryzen 7000 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
  3.6 GHz 4 GHz
• Core architecture
  normal normal
• Core Configuration
  8x Zen 4 8x Zen 4
• CPU Cores
  8 8
• CPU Threads
  16 16
• Hyperthreading / SMT
  Yes Yes
• Max. Boost Clock
  5.1 GHz 5.2 GHz
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  5.1 GHz 5.2 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 12
• Execution units
  2 12
• Generation
  9 10
• GPU Frequency
  2200 MHz 2800 MHz
• GPU name
  AMD Radeon 610M AMD Radeon 780M
• GPU Turbo
  2200 MHz 2700 MHz
• Graphics Cores
  2 12
• Max. displays
  3 4
• Max. GPU Memory
  8 GB 32 GB
• Release date
  Q3/2022 Q1/2023
• Shader
  128 768
• Technology
  6 nm 4 nm

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

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

Types, channel quantity of RAM supported by AMD Ryzen 9 7940HS and AMD Ryzen 7 7745HX. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB 256 GB
• Memory Bandwidth
  83.2 GB/s 89.6 GB/s
• Memory channels
  2 2
• Memory type
  DDR5 DDR5 (FP7r2) / LPDDR5X (FP7-FP8)
• PCIe
  PCIe 5.0 PCIe 4.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 7 7745HX and AMD Ryzen 9 7940HS 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 35-54 W
• Default TDP
  55 W 35-54 W
• Maximum Operating Temperature
  100 °C 100 °C
• TDP (PL1 / PBP, legacy combined label)
  55 W 54 W
• TDP down
  45 W 35 W
• TDP up
  75 W -

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 7745HX and AMD Ryzen 9 7940HS, virtual machine technologies and process technology.

• Architecture
  Dragon Range (Zen 4) Phoenix (Zen 4)
• Chip design
  Chiplet Monolithic
• Codename
  Dragon Range Phoenix
• Documents
  Technical data sheet Technical data sheet
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• L2-Cache
  8 MB 8 MB
• L3-Cache
  32 MB 16 MB
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Part Number
  100-000000721 100-000001128
• Release date
  2023-02-28 2023-04-30
• Socket
  FL1 FP7 / FP7r2 / FP8
• Technology
  TSMC 5nm FinFET TSMC 4nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM