40

Points
Mediatek Dimensity 820

37

Points
Mediatek Helio G99
Overview - Dimensity 820 Vs Helio G99

We have created a comprehensive comparison of the recently released Dimensity 820 vs Helio G99 SoCs by Mediatek. 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
Dimensity 820 26
Helio G99 19
Gaming Performance
GPU performance in games and OpenCL/Vulcan
Dimensity 820 20
Helio G99 14
Battery Life
Efficiency of battery consumption
Dimensity 820 75
Helio G99 79
Tenzys Tech Score
Overall chip score
Dimensity 820 40
Helio G99 37
Benchmarks

AnTuTu 9

Dimensity 820 Helio G99
CPU 125662 103357
GPU 125708 86376
Memory 77949 89007
UX 106547 101683
Total score 435866 380423
Key Differences

Pros of Mediatek Dimensity 820

  • Dimensity 820 has 18.18% higher CPU clock speed than Helio G99 (2600 vs 2200 MHz).
  • Dimensity 820 has 14.57% better AnTuTu 9 score than Helio G99 (436 K vs 380 K).
  • Dimensity 820 has latest instruction set, hence better than Helio G99.

Pros of Mediatek Helio G99

  • Helio G99 has 11.11% higher GPU clock speed than Dimensity 820 (1000 vs 900 MHz).
  • Helio G99 has 100.00% higher memory frequency than Dimensity 820 (4266 vs 2133 MHz).
  • Helio G99 has 14.29% smaller sized transistor than Dimensity 820 (6 vs 7 nm).
  • Helio G99 Support 0.18% higher memory bandwidth than Dimensity 820 (17.1 vs 17.07 GB/s).
Benchmarks

GeekBench 5

Single-Core Score

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Dimensity 820 646
Helio G99 543

Multi-Core Score

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Dimensity 820 2599
Helio G99 1740

Image compression

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Dimensity 820 142.3
Helio G99 114.8

Face detection

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Dimensity 820 22.4
Helio G99 14.3

Speech recognition

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Dimensity 820 41.2
Helio G99 36.1

Machine learning

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Dimensity 820 31.3
Helio G99 30.2

Camera shooting

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Dimensity 820 21.3
Helio G99 16.4

HTML 5

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Dimensity 820 2.94
Helio G99 1.73

SQLite

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Dimensity 820 759
Helio G99 599.6

3DMark

Stability 98%

Graphics test 13 FPS
Stability 99%

Graphics test 8 FPS
Full list of technical specifications

Display

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

CPU

64%
Turbo Clock Speed

2600 MHz

54%
Turbo Clock Speed

2200 MHz

49%
Base Frequency

2000 MHz

49%
Base Frequency

2000 MHz

  • Architecture 4x 2.6 GHz – Cortex-A76
    4x 2 GHz – Cortex-A55
    2x 2.2 GHz – Cortex-A76
    6x 2 GHz – Cortex-A55
  • Cores 8 8
  • Instruction set ARMv8.3-A ARMv8.2-A
  • L1 cache - -
  • L2 cache - -
  • L3 cache - -
  • Process 7 nm 6 nm
  • Transistor count - -
  • TDP 10 W -
Full list of technical specifications

Graphics

  • GPU name Mali-G57 MC5 Mali-G57 MC2
  • Architecture Valhall Valhall
  • GPU frequency 900 MHz 1000 MHz
  • Execution units 5 2
  • Shading units 80 32
  • FLOPS - -
  • 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 4266 MHz
  • Max bandwidth 17.07 Gbit/s 17.1 Gbit/s
  • Max Size 16 GB 10 GB
  • Memory type LPDDR4X LPDDR4X
  • Bus 1x 16 Bit 2x 16 Bit
Full list of technical specifications

Multimedia (ISP)

  • Neural processor (NPU) MediaTek APU 3.0 Yes
  • Storage type UFS 2.2 UFS 2.2
  • Max display resolution 2520 x 1080 2520 x 1080
  • Max camera resolution 1x 80MP, 2x 32MP 1x 108MP, 2x 16MP
  • Video capture 4K at 30FPS 2K at 30FPS
  • Video playback 4K at 30FPS 2K at 30FPS
  • Video codecs H.264, H.265, VP9 H.264, H.265, VP9
  • Audio codecs AAC LC, MP3, HE-AACv1, HE-AACv2, FLAC AAC, AIFF, CAF, MP3, MP4, WAV
Full list of technical specifications

Connectivity

  • Modem - -
  • 4G support LTE Cat. 18 LTE Cat. 13
  • 5G support Yes No
  • 5G Download Speed 4700 Mbps -
  • 4G Download Speed 1200 Mbps -
  • 5G Upload Speed 2500 Mbps -
  • 4G Upload Speed 211 Mbps -
  • Wi-Fi 5 5
  • Bluetooth 5.1 5.2
  • Navigation GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
Full list of technical specifications

Info

Review

Review By TenzysTech

Mediatek Dimensity 820

CPU
26%
GPU
20%
Memory
25%
Energy efficiency and battery life
75%

Mediatek Helio G99

CPU
19%
GPU
14%
Memory
50%
Energy efficiency and battery life
79%
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