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

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

• Family
  AMD Ryzen 9 AMD Ryzen 7 PRO
• CPU group
  AMD Ryzen 7040 AMD Ryzen 7040
• Segment
  Mobile Mobile
• Generation
  6 6

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• CPU Cores / Threads
  8 / 16 8 / 16
• Core architecture
  normal normal
• Cores
  8x Zen 4 8x Zen 4
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Frequency
  4.00 GHz 3.80 GHz
• Turbo Frequency (1 Core)
  5.20 GHz 5.10 GHz

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  AMD Radeon 780M Graphics AMD Radeon 780M Graphics
• GPU frequency
  1.20 GHz 1.20 GHz
• GPU (Turbo)
  2.70 GHz 2.70 GHz
• Execution units
  12 12
• Shader
  768 768
• Max. GPU Memory
  32 GB 32 GB
• Max. displays
  4 4
• Generation
  10 10
• Direct X
  12 12
• Technology
  4 nm 4 nm
• Release date
  Q1/2023 Q1/2023

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• h264
  Decode / Encode Decode / Encode
• VP8
  Decode Decode
• VP9
  Decode Decode
• AV1
  Decode / Encode Decode / Encode
• AVC
  Decode Decode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Overview of the types and quantities of RAM supported by AMD Ryzen 7 PRO 7840HS and AMD Ryzen 9 7940HS. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR5-5600LPDDR5X-7500 DDR5-5600LPDDR5X-7500
• Max. Memory
  256 GB 256 GB
• Memory channels
  2 (Dual Channel) 2 (Dual Channel)
• Bandwidth
  89.6 GB/s 89.6 GB/s
• ECC
  Yes Yes
• PCIe
  4.0 x 20 4.0 x 20
• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of AMD Ryzen 9 7940HS and AMD Ryzen 7 PRO 7840HS to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1 / PBP)
  54 W 54 W
• TDP down
  35 W 35 W
• Tjunction max.
  100 °C 100 °C

Information on architecture, interfaces, and additional instructions supported by AMD Ryzen 9 7940HS and AMD Ryzen 7 PRO 7840HS, including virtual machine technologies and fabrication processes.

• Technology
  4 nm 4 nm
• Chip design
  Monolithic Monolithic
• Socket
  FP8 FP8
• L2-Cache
  8.00 MB 8.00 MB
• L3-Cache
  16.00 MB 16.00 MB
• Architecture
  Phoenix (Zen 4) Phoenix (Zen 4)
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Virtualization
  AMD-V, SVM AMD-V, SVM
• 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
• Release date
  Q1/2023 Q2/2023
• Part Number
  100-000001128 --
• Documents
  Technical data sheet --