Intel Core i7-1255U vs Apple M1. Specifications, performance, tests

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

• CPU group
  Intel Core i 1200P/1200U Apple M1
• Family
  Intel Core i7 Apple M series
• Generation
  12 1
• Segment
  Mobile Mobile

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• A-Core
  2x Golden Cove 4x Firestorm
• B-Core
  8x Gracemont 4x Icestorm
• Base Frequency
  1.7 GHz 3.2 GHz
• Core architecture
  hybrid (big.LITTLE) hybrid (big.LITTLE)
• CPU Cores
  10 8
• CPU Threads
  12 8
• Hyperthreading / SMT
  Yes No
• Overclocking
  No No
• Turbo Frequency (1 Core)
  4.7 GHz No turbo
• Turbo Frequency (10 Cores)
  2.7 GHz -
• Turbo Frequency (8 Cores)
  - No turbo

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
  12.1 -
• Execution units
  96 128
• Generation
  13 1
• GPU Frequency
  350 MHz 3200 MHz
• GPU name
  Intel Iris Xe Graphics 96 (Alder Lake) Apple M1 (8 Core)
• GPU Turbo
  1250 MHz No turbo
• Max. displays
  4 2
• Max. GPU Memory
  64 GB 8 GB
• Release date
  Q1/2022 Q4/2020
• Shader
  768 0
• Technology
  10 nm 5 nm

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

• AV1
  Decode Decode
• 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 Decode
• VP9
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Apple M1 and Intel Core i7-1255U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  64 GB 16 GB
• Memory channels
  2 2
• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 LPDDR4X-4266
• PCIe
  4.0 x 28 -
• PCIe version
  - 4.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-1255U and Apple M1 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  100 °C -
• TDP (PL1, legacy label)
  15 W 15 W
• TDP (PL2)
  55 W -
• TDP down
  - 10 W
• TDP up
  - 20 W

Architecture, interfaces, additional instructions supported by Intel Core i7-1255U and Apple M1, virtual machine technologies and process technology.

• Architecture
  Alder Lake U M1
• Instruction set (ISA)
  x86-64 (64 bit) ARMv8-A64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 Rosetta 2 x86-Emulation
• L2-Cache
  6.5 MB 16 MB
• L3-Cache
  12 MB -
• Release date
  Q1/2022 Q4/2020
• Socket
  BGA 1744 -
• Technology
  10 nm 5 nm
• Virtualization
  VT-x, VT-x EPT, VT-d None