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Home > Smartphone processors comparison > Dimensity 800U vs Helio G99 – specs and benchmarks

Dimensity 800U Vs Helio G99

Dimensity 800U
VS
Helio G99
Dimensity 800U
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.
  1. Review
  2. Differences
  3. Benchmarks
  4. AnTuTu v9
  5. GeekBench 5
  6. Specs

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

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

Performance tests in popular benchmarks
SoC:
Dimensity 800U
vs
Helio G99

AnTuTu 9

Dimensity 800U +6%
402486
Helio G99
380423
CPU 113735 103357
GPU 104873 86376
Memory 67803 89007
UX 116075 101683
Total score 402486 380423

GeekBench 5

Single-Core Score
Dimensity 800U +9%
594
Helio G99
543
Multi-Core Score
Dimensity 800U
1683
Helio G99 +3%
1740
Image compression 105.3 Mpixels/s 114.8 Mpixels/s
Face detection 15.5 images/s 14.3 images/s
Speech recognition 33.8 words/s 36.1 words/s
Machine learning 28.6 images/s 30.2 images/s
Camera shooting 14.4 images/s 16.4 images/s
HTML 5 2.08 Mnodes/s 1.73 Mnodes/s
SQLite 534.9 Mnodes/s 599.6 Mnodes/s

3DMark

12%
Dimensity 800U
11%
Helio G99
Score: 1604

Stability 99% 99%
Graphics test 9 FPS 8 FPS
Score 1604 1362

Specifications

Full list of technical specifications of Mediatek Dimensity 800U and Mediatek Helio G99

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 - -

  CPU

63%
Dimensity 800U
58%
Helio G99
Processor Speed (Frequency)

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
Base Frequency 2000 MHz 2000 MHz
Turbo Frequency 2400 MHz 2200 MHz
Instruction set ARMv8-A ARMv8.2-A
L1 cache - -
L2 cache - -
L3 cache - -
Process 7 nm 6 nm
Transistor count - -
TDP 10 W -

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

Memory

Memory type LPDDR4X LPDDR4X
Memory frequency 2133 MHz 4266 MHz
Bus 2x 16 Bit 2x 16 Bit
Max bandwidth 17.07 Gbit/s 17.1 Gbit/s
Max size 12 GB 10 GB

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

Connectivity

Download Speed
4G (MB/s)
Dimensity 800U
1200
Helio G99
N/A
5G (MB/s)
Dimensity 800U
2300
Helio G99
N/A
Upload Speed
4G (MB/s)
Dimensity 800U
211
Helio G99
N/A
5G (MB/s)
Dimensity 800U
N/A
Helio G99
N/A
Modem - -
4G support LTE Cat. 18 LTE Cat. 13
5G support Yes No
Peak Download speed Up to 2300 Mbps -
Peak Upload speed - -
Wi-Fi 5 5
Bluetooth 5.1 5.2
Navigation GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC

Info

Announced Date August 2020 May 2022
Class Mid range Mid range
Model number MT6853T -
Official page Dimensity 800U official site Helio G99 official site
Mediatek Dimensity 800U
Mediatek Dimensity 800U
CPU
21%
GPU
16%
Memory
25%
Energy efficiency and battery life
75%

34.25


Review By TenzysTech
Mediatek Helio G99
Mediatek Helio G99
CPU
20%
GPU
15%
Memory
50%
Energy efficiency and battery life
79%

28.5


Review By TenzysTech

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