AMD Ryzen 9 7940HS vs AMD Ryzen 7 7840HS. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 7040 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
  4 GHz 3.8 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
  5.2 GHz 5.1 GHz
• Overclocking
  No No
• Turbo Frequency (1 Core)
  5.2 GHz 5.1 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
  12 12
• Generation
  10 10
• GPU Frequency
  2800 MHz 2700 MHz
• GPU name
  AMD Radeon 780M AMD Radeon 780M
• GPU Turbo
  2700 MHz 2700 MHz
• Graphics Cores
  12 12
• Max. displays
  4 4
• Max. GPU Memory
  32 GB 32 GB
• Release date
  Q1/2023 Q1/2023
• Shader
  768 768
• Technology
  4 nm 4 nm

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

• AV1
  Decode / Encode Decode / Encode
• H.264 / AVC
  Conflicting source values: Decode | 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 Decode
• VP9
  Decode Decode

Types, channel quantity of RAM supported by AMD Ryzen 7 7840HS and AMD Ryzen 9 7940HS. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 7940HS and AMD Ryzen 7 7840HS 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 35-54 W
• Maximum Operating Temperature
  100 °C 100 °C
• TDP (PL1 / PBP, legacy combined label)
  54 W 54 W
• TDP down
  35 W 35 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 7940HS and AMD Ryzen 7 7840HS, virtual machine technologies and process technology.

• Architecture
  Phoenix (Zen 4) Phoenix (Zen 4)
• Chip design
  Monolithic Monolithic
• Codename
  Phoenix 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
  16 MB 16 MB
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Part Number
  100-000001128 100-000001129
• Release date
  2023-04-30 Q4/2023
• Socket
  FP7 / FP7r2 / FP8 FP7 / FP7r2 / FP8
• Technology
  TSMC 4nm FinFET TSMC 4nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM