Intel Core i7-1255U vs Intel Core i7-8750H. Specifications, performance, tests

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

• Family
  Intel Core i7 Intel Core i7
• CPU group
  Intel Core i 1200P/1200U Intel Core i 8000H
• Segment
  Mobile Mobile
• Generation
  12 8

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.

• Core architecture
  hybrid (big.LITTLE) normal
• Frequency
  1.70 GHz 2.20 GHz
• Turbo (1 Core)
  4.70 GHz 4.10 GHz
• Hyperthreading
  Yes Yes
• Overclocking
  No No

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
  Intel Iris Xe Graphics 96 (Alder Lake) Intel UHD Graphics 630
• GPU frequency
  0.35 GHz 0.35 GHz
• GPU (Turbo)
  1.25 GHz 1.10 GHz
• Execution units
  96 24
• Shader
  768 192
• Max. GPU Memory
  64 GB 64 GB
• Max. displays
  4 3
• Generation
  13 9.5
• Technology
  10 nm 14 nm
• Release date
  Q1/2022 Q4/2017

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 / Encode
• VP9
  Decode / Encode Decode / Encode
• AV1
  Decode No
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i7-8750H and Intel Core i7-1255U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 DDR4-2400 SO-DIMM
• Max. Memory
  64 GB 64 GB
• Memory channels
  2 2
• ECC
  No No

Compare the TDP requirements of TDP Intel Core i7-1255U and Intel Core i7-8750H to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 45 W
• TDP (PL2)
  55 W --
• Tjunction max.
  100 °C --

Architecture, interfaces, additional instructions supported by Intel Core i7-1255U and Intel Core i7-1255U, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• L2-Cache
  6.50 MB --
• L3-Cache
  12.00 MB 9.00 MB
• Architecture
  Alder Lake U Coffee Lake H
• Technology
  10 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• Socket
  BGA 1744 BGA 1440
• Release date
  Q1/2022 Q2/2018