Intel Atom Z3745 vs Intel Atom x5-Z8500. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  Intel Atom Intel Atom
• Generation
  4 1
• CPU group
  Intel Atom Z3700 Intel Atom x3/x5/x7

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
  1.33 GHz 1.44 GHz
• CPU Cores
  4 4
• Turbo (1 Core)
  1.86 GHz 2.24 GHz
• CPU Threads
  4 4
• Turbo (4 Cores)
  No turbo 2.24 GHz
• 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 HD Graphics (Bay Trail GT1) Intel HD Graphics 400
• GPU frequency
  0.31 GHz 0.20 GHz
• GPU (Turbo)
  0.78 GHz 0.60 GHz
• Execution units
  4 12
• Shader
  32 96
• Max. GPU Memory
  8 GB 8 GB
• Max. displays
  2 3
• Generation
  7 8
• DirectX Version
  11.2 12
• Technology
  22 nm 14 nm
• Release date
  Q3/2013 Q1/2015

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

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

Types, channel quantity of RAM supported by Intel Atom x5-Z8500 and Intel Atom Z3745. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  LPDDR3-1066 DDR3L-1600 SO-DIMM
• Max. Memory
  4 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  2.0
• PCIe lanes
  2

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Atom Z3745 and Intel Atom x5-Z8500 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  4 W 2 W
• Tjunction max.
  90 °C --

Architecture, interfaces, additional instructions supported by Intel Atom Z3745 and Intel Atom Z3745, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT VT-x, VT-x EPT
• ISA extensions
  SSE4.1, SSE4.2 SSE4.1, SSE4.2
• L3-Cache
  2.00 MB 2.00 MB
• Architecture
  Bay Trail Cherry Trail
• Technology
  22 nm 14 nm
• Socket
  BGA 1380 BGA 138
• Release date
  Q1/2014 Q2/2015