HiSilicon Kirin 920 vs Intel Atom x7-Z8750. Specifications, performance, tests

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

• Segment
  Mobile Mobile
• Family
  HiSilicon Kirin Intel Atom
• Generation
  2 1
• CPU group
  HiSilicon Kirin 920 Intel Atom x3/x5/x7

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• Frequency
  1.30 GHz 1.60 GHz
• CPU Cores
  8 4
• Turbo (1 Core)
  1.70 GHz 2.56 GHz
• CPU Threads
  8 4
• Hyperthreading
  No No
• Overclocking
  No No
• Core architecture
  hybrid (big.LITTLE) normal
• A core
  4x Cortex-A15 --
• B core
  4x Cortex-A7 --

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  ARM Mali-T628 MP4 Intel HD Graphics 405 (16EU)
• GPU frequency
  0.60 GHz 0.20 GHz
• GPU (Turbo)
  0.60 GHz 0.60 GHz
• Execution units
  4 16
• Shader
  64 128
• Max. GPU Memory
  -- 8 GB
• Max. displays
  1 3
• Generation
  Midgard 2 8
• DirectX Version
  11 12
• Technology
  32nm 14 nm
• Release date
  Q4/2012 Q2/2015

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

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

Overview of the types and quantities of RAM supported by Intel Atom x7-Z8750 and HiSilicon Kirin 920. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  LPDDR3-1600 LPDDR3-1600
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  2.0
• PCIe lanes
  2

• AES-NI
  No Yes

Analyze the TDP (Thermal Design Power) requirements of HiSilicon Kirin 920 and Intel Atom x7-Z8750 to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  2 W

Information on architecture, interfaces, and additional instructions supported by HiSilicon Kirin 920 and Intel Atom x7-Z8750, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  ARMv7-A32 (32 bit) x86-64 (64 bit)
• Virtualization
  None VT-x, VT-x EPT
• ISA extensions
  SSE4.1, SSE4.2
• L3-Cache
  -- 2.00 MB
• Architecture
  Cortex-A15 / Cortex-A7 Cherry Trail
• Technology
  28 nm 14 nm
• Socket
  N/A BGA 138
• Release date
  Q3/2014 Q1/2016