Intel Core i5-1245U vs Intel Atom E3805. Specifications, performance, tests

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

• Family
  Intel Core i5 Intel Atom
• CPU group
  Intel Core i 1200P/1200U Intel Atom E3800
• Segment
  Mobile Mobile
• Generation
  12 4

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
  1.60 GHz 1.33 GHz
• Turbo (1 Core)
  4.40 GHz No turbo
• Hyperthreading
  Yes No
• 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 80 (Alder Lake) no iGPU
• GPU frequency
  0.35 GHz
• GPU (Turbo)
  1.20 GHz No turbo
• Execution units
  80
• Shader
  640
• Max. GPU Memory
  64 GB --
• Max. displays
  4
• Generation
  13
• Technology
  10 nm
• Release date
  Q1/2022

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

• h265 / HEVC (8 bit)
  Decode / Encode No
• h265 / HEVC (10 bit)
  Decode / Encode No
• h264
  Decode / Encode No
• VP8
  Decode No
• VP9
  Decode / Encode No
• AV1
  Decode No
• AVC
  Decode / Encode No
• VC-1
  Decode No
• JPEG
  Decode / Encode No

Types, channel quantity of RAM supported by Intel Atom E3805 and Intel Core i5-1245U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 DDR3L-1066 SO-DIMM
• Max. Memory
  64 GB 8 GB
• Memory channels
  2 1
• ECC
  No Yes

Compare the TDP requirements of TDP Intel Core i5-1245U and Intel Atom E3805 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 3 W
• TDP (PL2)
  55 W --
• Tjunction max.
  100 °C 110 °C

Architecture, interfaces, additional instructions supported by Intel Core i5-1245U and Intel Core i5-1245U, 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
• L2-Cache
  6.50 MB --
• L3-Cache
  12.00 MB 1.00 MB
• Architecture
  Alder Lake U Bay Trail
• Technology
  10 nm 22 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT
• Socket
  BGA 1744 BGA 1170
• Release date
  Q1/2022 Q4/2014