MediaTek Dimensity 800 vs HiSilicon Kirin 990 4G. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  Mediatek Dimensity HiSilicon Kirin
• Generation
  1 8
• CPU group
  MediaTek Dimensity 700/720/800 HiSilicon Kirin 990

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
  2.00 GHz 1.86 GHz
• CPU Cores
  8 8
• Turbo (1 Core)
  2.00 GHz 2.09 GHz
• CPU Threads
  8 8
• Turbo (8 Cores)
  2.00 GHz 2.86 GHz
• Hyperthreading
  No No
• Overclocking
  No No
• Core architecture
  hybrid (big.LITTLE) hybrid (Prime / big.LITTLE)
• A core
  4x Cortex-A76 2x Cortex-A76
• B core
  4x Cortex-A55 2x Cortex-A76
• C core
  -- 4x Cortex-A55

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
  ARM Mali-G57 MP4 ARM Mali-G76 MP16
• GPU frequency
  0.65 GHz 0.60 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  4 16
• Shader
  64 256
• Max. GPU Memory
  4 GB 4 GB
• Max. displays
  2 2
• Generation
  Vallhall 1 Bifrost 3
• DirectX Version
  12 12
• Technology
  7 nm 7 nm
• Release date
  Q2/2020 Q3/2018

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 No
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode / Encode Decode / Encode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by HiSilicon Kirin 990 4G and MediaTek Dimensity 800. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  LPDDR4X-2133 LPDDR4X-2133
• Max. Memory
  16 GB 8 GB
• ECC
  No No
• Memory channels
  2 4

• AES-NI
  No No

Compare the TDP requirements of TDP MediaTek Dimensity 800 and HiSilicon Kirin 990 4G to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  6 W

Architecture, interfaces, additional instructions supported by MediaTek Dimensity 800 and MediaTek Dimensity 800, virtual machine technologies and process technology.

• 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
  Q2/2020 Q3/2019
• Part Number
  MT6873 --