78

Points
Mediatek Helio G99
Overview - Dimensity 800U Vs Helio G99

We have created a comprehensive comparison of the recently released Dimensity 800U 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 800U 21
Helio G99 20
Gaming Performance
GPU performance in games and OpenCL/Vulcan
Dimensity 800U 16
Helio G99 15
Battery Life
Efficiency of battery consumption
Dimensity 800U 75
Helio G99 79
Tenzys Tech Score
Overall chip score
Dimensity 800U 37
Helio G99 38
Benchmarks

AnTuTu 9

Dimensity 800U Helio G99
CPU 113735 103357
GPU 104873 86376
Memory 67803 89007
UX 116075 101683
Total score 402486 380423
Key Differences

Pros of Mediatek Dimensity 800U

  • Dimensity 800U has 9.09% higher CPU clock speed than Helio G99 (2400 vs 2200 MHz).
  • Dimensity 800U has 5.80% better AnTuTu 9 score than Helio G99 (402 K vs 380 K).

Pros of Mediatek Helio G99

  • Helio G99 has 17.65% higher GPU clock speed than Dimensity 800U (1000 vs 850 MHz).
  • Helio G99 has 100.00% higher memory frequency than Dimensity 800U (4266 vs 2133 MHz).
  • Helio G99 has 14.29% smaller sized transistor than Dimensity 800U (6 vs 7 nm).
  • Helio G99 has latest instruction set, hence better than Dimensity 800U.
  • Helio G99 Support 0.18% higher memory bandwidth than Dimensity 800U (17.1 vs 17.07 GB/s).
Benchmarks

GeekBench 5

Single-Core Score

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Dimensity 800U 594
Helio G99 543

Multi-Core Score

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Dimensity 800U 1683
Helio G99 1740

Image compression

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Dimensity 800U 105.3
Helio G99 114.8

Face detection

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Dimensity 800U 15.5
Helio G99 14.3

Speech recognition

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Dimensity 800U 33.8
Helio G99 36.1

Machine learning

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Dimensity 800U 28.6
Helio G99 30.2

Camera shooting

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Dimensity 800U 14.4
Helio G99 16.4

HTML 5

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Dimensity 800U 2.08
Helio G99 1.73

SQLite

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Dimensity 800U 534.9
Helio G99 599.6

3DMark

Stability 99%

Graphics test 9 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 HDR10+ -
  • Color Depth - -
  • Color Gamut - -
Full list of technical specifications

CPU

63%
Turbo Clock Speed

2400 MHz

58%
Turbo Clock Speed

2200 MHz

91%
Base Frequency

2000 MHz

91%
Base Frequency

2000 MHz

  • Architecture 2x 2.4 GHz – Cortex-A76
    6x 2 GHz – Cortex-A55
    2x 2.2 GHz – Cortex-A76
    6x 2 GHz – Cortex-A55
  • Cores 8 8
  • Instruction set ARMv8-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 MC3 Mali-G57 MC2
  • Architecture Valhall Valhall
  • GPU frequency 850 MHz 1000 MHz
  • Execution units 3 2
  • Shading units 48 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 12 GB 10 GB
  • Memory type LPDDR4X LPDDR4X
  • Bus 2x 16 Bit 2x 16 Bit
Full list of technical specifications

Multimedia (ISP)

  • Neural processor (NPU) Yes Yes
  • Storage type UFS 2.2 UFS 2.2
  • Max display resolution 2520 x 1080 2520 x 1080
  • Max camera resolution 1x 64MP, 2x 20MP 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
  • 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 800U

CPU
21%
GPU
16%
Memory
25%
Energy efficiency and battery life
75%

Mediatek Helio G99

CPU
20%
GPU
15%
Memory
50%
Energy efficiency and battery life
79%
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