Qualcomm Snapdragon 678 vs Qualcomm Snapdragon 865. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  Qualcomm Snapdragon Qualcomm Snapdragon
• Generation
  7 7
• CPU group
  Qualcomm Snapdragon 675/678 Qualcomm Snapdragon 865/870
• Predecessor
  Qualcomm Snapdragon 675 --

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
  1.70 GHz 1.80 GHz
• CPU Cores
  8 8
• Turbo (1 Core)
  2.20 GHz 2.84 GHz
• CPU Threads
  8 8
• Turbo (8 Cores)
  1.70 GHz 2.42 GHz
• Hyperthreading
  No No
• Overclocking
  No No
• Core architecture
  hybrid (big.LITTLE) hybrid (Prime / big.LITTLE)
• A core
  2x Kryo 460 Gold 1x Kryo 585 Prime
• B core
  6x Kryp 460 Silver 3x Kryo 585 Gold
• C core
  -- 4x Kryo 585 Silver

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
  Qualcomm Adreno 612 Qualcomm Adreno 650
• GPU frequency
  0.85 GHz 0.25 GHz
• GPU (Turbo)
  0.85 GHz 0.59 GHz
• Execution units
  0 2
• Shader
  0 512
• Max. displays
  0 1
• Generation
  6 6
• DirectX Version
  12.1 12.0
• Technology
  11 nm 7 nm
• Release date
  Q4/2019

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

Overview of the types and quantities of RAM supported by Qualcomm Snapdragon 865 and Qualcomm Snapdragon 678. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  LPDDR4X-1866 LPDDR4X-4266
• Max. Memory
  16 GB
• ECC
  No No
• Memory channels
  2 4

• AES-NI
  No No

Analyze the TDP (Thermal Design Power) requirements of Qualcomm Snapdragon 678 and Qualcomm Snapdragon 865 to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  10 W

Information on architecture, interfaces, and additional instructions supported by Qualcomm Snapdragon 678 and Qualcomm Snapdragon 865, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  ARMv8-A64 (64 bit) ARMv8-A64 (64 bit)
• Virtualization
  None None
• L2-Cache
  -- 2.00 MB
• L3-Cache
  -- 3.00 MB
• Architecture
  Kryo 460 Kryo 585
• Technology
  11 nm 7 nm
• Socket
  N/A N/A
• Release date
  Q4/2020 Q4/2019
• Part Number
  SM6150-AC SM8250