HiSilicon Kirin 820 5G vs HiSilicon Kirin 985 5G. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  HiSilicon Kirin HiSilicon Kirin
• Generation
  6 7
• CPU group
  HiSilicon Kirin 810/820 HiSilicon Kirin 980

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
  1.84 GHz 1.84 GHz
• CPU Cores
  8 8
• Turbo (1 Core)
  2.36 GHz 2.40 GHz
• CPU Threads
  8 8
• Turbo (8 Cores)
  2.36 GHz 2.58 GHz
• Hyperthreading
  No No
• Overclocking
  No No
• Core architecture
  hybrid (big.LITTLE) hybrid (Prime / big.LITTLE)
• A core
  4x Cortex-A76 1x Cortex-A76
• B core
  4x Cortex-A55 3x Cortex-A76
• C core
  -- 4x Cortex-A55

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-G57 MP6 ARM Mali-G77 MP8
• GPU frequency
  0.85 GHz 0.80 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  6 8
• Shader
  96 128
• Max. GPU Memory
  4 GB 4 GB
• Max. displays
  2 1
• Generation
  Vallhall 1 Vallhall 1
• DirectX Version
  12 12
• Technology
  7 nm 7 nm
• Release date
  Q2/2020 Q2/2019

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)
  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 / Encode Decode / Encode
• JPEG
  Decode / Encode Decode / Encode

Overview of the types and quantities of RAM supported by HiSilicon Kirin 985 5G and HiSilicon Kirin 820 5G. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  LPDDR4X-2133 LPDDR4X-2133
• ECC
  No No
• Memory channels
  4 4

• AES-NI
  No No

Analyze the TDP (Thermal Design Power) requirements of HiSilicon Kirin 820 5G and HiSilicon Kirin 985 5G to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  6 W

Information on architecture, interfaces, and additional instructions supported by HiSilicon Kirin 820 5G and HiSilicon Kirin 985 5G, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  ARMv8-A64 (64 bit) ARMv8-A64 (64 bit)
• Virtualization
  None None
• L3-Cache
  2.00 MB --
• Architecture
  Cortex-A76 / Cortex-A55 Cortex-A76 / Cortex-A55
• Technology
  7 nm 7 nm
• Socket
  N/A N/A
• Release date
  Q2/2019 Q2/2020
• Part Number
  -- Hi6290