Overview - Snapdragon 678 Vs Dimensity 820

We have created a comprehensive comparison of the recently released Snapdragon 678 vs Dimensity 820 SoCs by Qualcomm and Mediatek respectively. We've now weighed the advantages and disadvantages of these 8-core CPUs on the basis of their Geekbench, Antutu and 3DMark benchmarks with their technical specifications.

Features

Review

CPU Performance
Single and multi-core processor tests
Snapdragon 678 19
Dimensity 820 27
Gaming Performance
GPU performance in games and OpenCL/Vulcan
Snapdragon 678 12
Dimensity 820 20
Battery Life
Efficiency of battery consumption
Snapdragon 678 61
Dimensity 820 75
Tenzys Tech Score
Overall chip score
Snapdragon 678 31
Dimensity 820 41
Benchmarks

AnTuTu 9

Snapdragon 678 Dimensity 820
CPU 101216 125662
GPU 51346 125708
Memory 48181 77949
UX 82701 106547
Total score 283444 435866
Key Differences

Pros of Mediatek Dimensity 820

  • Dimensity 820 has 18.18% higher CPU clock speed than Snapdragon 678 (2600 vs 2200 MHz).
  • Dimensity 820 has 6.51% higher GPU clock speed than Snapdragon 678 (900 vs 845 MHz).
  • Dimensity 820 has 36.36% smaller sized transistor than Snapdragon 678 (7 vs 11 nm).
  • Dimensity 820 has 53.77% better AnTuTu 9 score than Snapdragon 678 (436 K vs 283 K ).
  • Dimensity 820 has latest instruction set, hence better than Snapdragon 678.
  • Dimensity 820 Support 14.56% higher memory bandwidth than Snapdragon 678 (17.07 vs 14.9 GB/s).
Benchmarks

GeekBench 5

Single-Core Score

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Snapdragon 678 529
Dimensity 820 646

Multi-Core Score

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Snapdragon 678 1536
Dimensity 820 2599

Image compression

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Snapdragon 678 102.2
Dimensity 820 142.3

Face detection

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Snapdragon 678 14.5
Dimensity 820 22.4

Speech recognition

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Snapdragon 678 27.8
Dimensity 820 41.2

Machine learning

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Snapdragon 678 23.7
Dimensity 820 31.3

Camera shooting

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Snapdragon 678 13.7
Dimensity 820 21.3

HTML 5

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Snapdragon 678 2.05
Dimensity 820 2.94

SQLite

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Snapdragon 678 527.2
Dimensity 820 759

3DMark

Stability 99%

Graphics test 2 FPS
Stability 98%

Graphics test 13 FPS
Full list of technical specifications

Display

  • Max On-Device Display FHD+ @ 120Hz Full HD+ @ 120Hz
  • Max On-Display Resolution 2520 x 1080 2520 x 1080
  • Max External Display - -
  • HDR HDR10 HDR, HDR10+
  • Color Depth Up to 10-bit -
  • Color Gamut Rec2020 -
Full list of technical specifications

CPU

58%
Turbo Clock Speed

2200 MHz

69%
Turbo Clock Speed

2600 MHz

77%
Base Frequency

1700 MHz

91%
Base Frequency

2000 MHz

  • Architecture 2x 2.2 GHz – Kryo 460 Gold (Cortex-A76)
    6x 1.7 GHz – Kryo 460 Silver (Cortex-A55)
    4x 2.6 GHz – Cortex-A76
    4x 2 GHz – Cortex-A55
  • Cores 8 8
  • Instruction set ARMv8-A ARMv8.3-A
  • L1 cache 16 KB -
  • L2 cache 0.256 MB -
  • L3 cache - -
  • Process 11 nm 7 nm
  • Transistor count 12 Billion -
  • TDP 6 W 10 W
Full list of technical specifications

Graphics

  • GPU name Adreno 612 Mali-G57 MC5
  • Architecture Adreno 600 Valhall
  • GPU frequency 845 MHz 900 MHz
  • Execution units 2 5
  • Shading units 96 80
  • FLOPS 354 Gigaflops -
  • Vulkan version 1.1 1.1
  • OpenCL version 2.0 2.0
  • DirectX version 12 12
Full list of technical specifications

Memory

  • Memory frequency 2133 MHz 2133 MHz
  • Max bandwidth 14.9 Gbit/s 17.07 Gbit/s
  • Max Size 8 GB 16 GB
  • Memory type LPDDR4X LPDDR4X
  • Bus 2 x 16 Bit 1x 16 Bit
Full list of technical specifications

Multimedia (ISP)

  • Neural processor (NPU) Hexagon 685 MediaTek APU 3.0
  • Storage type eMMC 5.1, UFS 2.1 UFS 2.2
  • Max display resolution 2520 x 1080 2520 x 1080
  • Max camera resolution 1x 192MP, 2x 25MP 1x 80MP, 2x 32MP
  • Video capture 4K at 30FPS 4K at 30FPS
  • Video playback 4K at 30FPS 4K at 30FPS
  • Video codecs H.264, H.265, VP9 H.264, H.265, VP9
  • Audio codecs AAC, AIFF, CAF, MP3, MP4, WAV AAC LC, MP3, HE-AACv1, HE-AACv2, FLAC
Full list of technical specifications

Connectivity

  • Modem X12 -
  • 4G support LTE Cat. 12 LTE Cat. 18
  • 5G support No Yes
  • Wi-Fi 6 5
  • Bluetooth 5.0 5.1
  • Navigation GPS, GLONASS, Beidou, Galileo, QZSS, SBAS GPS, GLONASS, Beidou, Galileo, QZSS
Full list of technical specifications

Info

Review

Review By TenzysTech

Qualcomm Snapdragon 678

CPU
19%
GPU
12%
Memory
25%
Energy efficiency and battery life
61%

Mediatek Dimensity 820

CPU
27%
GPU
20%
Memory
25%
Energy efficiency and battery life
75%
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