Intel Atom x7-Z8700 vs HiSilicon Kirin 925. Specifications, performance, tests

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

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

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• A-Core
  - 4x Cortex-A15
• B-Core
  - 4x Cortex-A7
• Base Frequency
  1.6 GHz 1.3 GHz
• Core architecture
  normal hybrid (big.LITTLE)
• CPU Cores
  4 8
• CPU Threads
  4 8
• Hyperthreading / SMT
  No No
• Overclocking
  No No
• Turbo Frequency (1 Core)
  2.4 GHz 1.8 GHz
• Turbo Frequency (4 Cores)
  2.4 GHz -
• Turbo Frequency (8 Cores)
  - 1.8 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.

• DirectX Version
  12 11
• Execution units
  16 4
• Generation
  8 Midgard 2
• GPU Frequency
  200 MHz 600 MHz
• GPU name
  Intel HD Graphics 405 (16EU) ARM Mali-T628 MP4
• GPU Turbo
  600 MHz 600 MHz
• Max. displays
  3 1
• Max. GPU Memory
  8 GB -
• Release date
  Q2/2015 Q4/2012
• Shader
  128 64
• Technology
  14 nm 32nm

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

• AV1
  No No
• H.264 / AVC
  Decode / Encode Conflicting source values: Decode / Encode | No
• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• JPEG
  Decode No
• VC-1
  Decode No
• VP8
  Decode Decode / Encode
• VP9
  No No

Types, channel quantity of RAM supported by HiSilicon Kirin 925 and Intel Atom x7-Z8700. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes No

Compare the TDP requirements of TDP Intel Atom x7-Z8700 and HiSilicon Kirin 925 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• TDP (PL1, legacy label)
  2 W -

Architecture, interfaces, additional instructions supported by Intel Atom x7-Z8700 and HiSilicon Kirin 925, virtual machine technologies and process technology.

• Architecture
  Cherry Trail Cortex-A15 / Cortex-A7
• Instruction set (ISA)
  x86-64 (64 bit) ARMv7-A32 (32 bit)
• ISA extensions
  SSE4.1, SSE4.2 -
• L3-Cache
  2 MB -
• Release date
  Q1/2015 Q3/2014
• Socket
  BGA 138 -
• Technology
  14 nm 28 nm
• Virtualization
  VT-x, VT-x EPT None