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.
Review
CPU Performance
Single and multi-core processor tests
Gaming Performance
GPU performance in games and OpenCL/Vulcan
Battery life
Efficiency of battery consumption
Tenzys Tech Score
Overall chip score
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 benchmarksAnTuTu 9
| CPU | 113735 | 103357 |
| GPU | 104873 | 86376 |
| Memory | 67803 | 89007 |
| UX | 116075 | 101683 |
| Total score | 402486 | 380423 |
GeekBench 5
Single-Core Score
Multi-Core Score
| 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 800U11%
Helio G99Score: 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 G99Display
| 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 800U58%
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)
5G (MB/s)
Upload Speed
4G (MB/s)
5G (MB/s)
| 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
34.25
Review By TenzysTech
Mediatek Helio G99
28.5
Review By TenzysTech
