AMD Ryzen 9 7940HS vs Intel Core i7-1255U. Specifications, performance, tests

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

• Family
  AMD Ryzen 9 Intel Core i7
• CPU group
  AMD Ryzen 7040 Intel Core i 1200P/1200U
• Segment
  Mobile Mobile
• Generation
  6 12

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• CPU Cores / Threads
  8 / 16 10 / 12
• Core architecture
  normal hybrid (big.LITTLE)
• Overclocking
  No No
• Frequency
  4.00 GHz 1.70 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 name
  AMD Radeon 780M Graphics Intel Iris Xe Graphics 96 (Alder Lake)
• GPU frequency
  1.20 GHz 0.35 GHz
• GPU (Turbo)
  2.70 GHz 1.25 GHz
• Execution units
  12 96
• Shader
  768 768
• Max. GPU Memory
  32 GB 64 GB
• Max. displays
  4 4
• Generation
  10 13
• Direct X
  12 12.1
• Technology
  4 nm 10 nm
• Release date
  Q1/2023 Q1/2022

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

• 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 / Encode
• AV1
  Decode / Encode Decode
• AVC
  Decode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i7-1255U and AMD Ryzen 9 7940HS. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR5-5600LPDDR5X-7500 DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200
• Max. Memory
  256 GB 64 GB
• Memory channels
  2 (Dual Channel) 2
• ECC
  Yes No
• PCIe
  4.0 x 20 4.0 x 28
• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 7940HS and Intel Core i7-1255U to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL2)
  -- 55 W
• TDP down
  35 W --
• Tjunction max.
  100 °C 100 °C

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

• Technology
  4 nm 10 nm
• Socket
  FP8 BGA 1744
• L2-Cache
  8.00 MB 6.50 MB
• L3-Cache
  16.00 MB 12.00 MB
• Architecture
  Phoenix (Zen 4) Alder Lake U
• Virtualization
  AMD-V, SVM VT-x, VT-x EPT, VT-d
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 SSE4.1, SSE4.2, AVX2
• Release date
  Q1/2023 Q1/2022
• Part Number
  100-000001128 --