Intel Atom x6425RE vs Intel Atom x6427FE. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  Intel Atom Intel Atom
• Generation
  2 2
• CPU group
  Intel Atom x6000 Intel Atom x6000

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.

• Frequency
  1.90 GHz 1.90 GHz
• CPU Cores
  4 4
• Turbo (1 Core)
  No turbo No turbo
• CPU Threads
  4 4
• Turbo (4 Cores)
  No turbo No turbo
• Hyperthreading
  No No
• Overclocking
  No No
• Core architecture
  normal normal

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 UHD Graphics 32 EUs (Elkhart Lake) Intel UHD Graphics 32 EUs (Elkhart Lake)
• GPU frequency
  0.40 GHz 0.40 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  32 32
• Shader
  256 256
• Max. displays
  3 3
• Generation
  11 11
• DirectX Version
  12 12
• Technology
  10 nm 10 nm
• Release date
  Q1/2021 Q1/2021

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
• VP9
  Decode / Encode Decode / Encode
• VP8
  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 Atom x6427FE and Intel Atom x6425RE. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200LPDDR4X-4266 DDR4-3200LPDDR4X-4266
• Max. Memory
  64 GB 64 GB
• ECC
  No No
• Memory channels
  4 4
• PCIe version
  3.0 3.0
• PCIe lanes
  8 8

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Atom x6425RE and Intel Atom x6427FE to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  12 W 12 W
• Tjunction max.
  105 °C 105 °C

Architecture, interfaces, additional instructions supported by Intel Atom x6425RE and Intel Atom x6425RE, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2 SSE4.1, SSE4.2
• L2-Cache
  1.50 MB 1.50 MB
• Architecture
  Elkhart Lake Elkhart Lake
• Technology
  10 nm 10 nm
• Socket
  BGA 1296 BGA 1296
• Release date
  Q1/2021 Q1/2021