Intel Core i7-1255UL vs Intel Core i5-1235UL. Specifications, performance, tests

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

• Family
  Intel Core i7 Intel Core i5
• CPU group
  Intel Core i 1200P/1200U Intel Core i 1200P/1200U
• Segment
  Mobile Mobile
• Generation
  12 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
  10 / 12 10 / 12
• Core architecture
  hybrid (big.LITTLE) hybrid (big.LITTLE)
• A-Core
  2x Golden Cove 2x Golden Cove
• B-Core
  8x Gracemont 8x Gracemont
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• A-Core Frequency
  2.60 GHz (4.70 GHz) 2.50 GHz (4.40 GHz)
• B-Core Frequency
  1.20 GHz (3.50 GHz) 0.90 GHz (3.30 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
  Intel Iris Xe Graphics 96 (Alder Lake) Intel Iris Xe Graphics 80 (Alder Lake)
• GPU frequency
  0.35 GHz 0.35 GHz
• GPU (Turbo)
  1.25 GHz 1.20 GHz
• Execution units
  96 80
• Shader
  768 640
• Max. GPU Memory
  32 GB 32 GB
• Max. displays
  4 4
• Generation
  13 13
• Direct X
  12.1 12.1
• Technology
  10 nm 10 nm
• Release date
  Q1/2022 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 / Encode Decode / Encode
• AV1
  Decode Decode
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Core i5-1235UL and Intel Core i7-1255UL. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800 DDR4-3200DDR5-4800
• Max. Memory
  64 GB 64 GB
• Memory channels
  2 (Dual Channel) 2 (Dual Channel)
• Bandwidth
  76.8 GB/s 76.8 GB/s
• ECC
  No No
• PCIe
  4.0 x 28 4.0 x 28
• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-1255UL and Intel Core i5-1235UL to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 15 W
• TDP (PL2)
  55 W 55 W
• TDP up
  28 W 28 W
• TDP down
  12 W 12 W
• Tjunction max.
  100 °C 100 °C

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

• Technology
  10 nm 10 nm
• Chip design
  Monolithic Monolithic
• Socket
  BGA 1744 BGA 1744
• L2-Cache
  6.50 MB 6.50 MB
• L3-Cache
  12.00 MB 12.00 MB
• Architecture
  Alder Lake U Alder Lake U
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• Release date
  Q3/2022 Q3/2022