Unisoc T820 vs Helio G99
We compared two 8-core processors: Unisoc T820 (with Mali-G57 MP4 graphics) and MediaTek Helio G99 (Mali-G57 MP2). Here you will find the pros and cons of each chip, technical specs, and comprehensive tests in benchmarks, like AnTuTu and Geekbench.
Review
CPU Performance
Single and multi-core processor tests
Gaming Performance
GPU performance in games and OpenCL/Vulkan
Battery life
Efficiency of battery consumption
NanoReview Score
Overall chip score
Key Differences
Pros of Unisoc T820
- Performs 56% better in floating-point computations
- Shows better (up to 37%) AnTuTu 11 score β 757K vs 554K
- 23% higher CPU clock speed (2700 vs 2200 MHz)
Pros of MediaTek Helio G99
- Higher GPU frequency (~28%)
Benchmarks
Performance tests in popular benchmarksAnTuTu 11
| CPU | 262223 | 218545 |
| GPU | 57118 | 43804 |
| Memory | 290052 | 156545 |
| UX | 147806 | 135696 |
| Total score | 757199 | 554590 |
| Samples | [3 tests] | [313 tests] |
GeekBench 6
Single-Core Score
Multi-Core Score
| Asset compression | 117.9 MB/sec | 96.3 MB/sec |
| HTML 5 Browser | 56.1 pages/sec | 52 pages/sec |
| PDF Renderer | 86.2 Mpixels/sec | 72.2 Mpixels/sec |
| Image detection | 41.5 images/sec | 38.5 images/sec |
| HDR | 68.5 Mpixels/sec | 63.4 Mpixels/sec |
| Background blur | 7.47 images/sec | 5.68 images/sec |
| Photo processing | 20.9 images/sec | 16.6 images/sec |
| Ray tracing | 3.5 Mpixels/sec | 2.79 Mpixels/sec |
| Samples | 3 tests | 82 tests |
Compute Score (GPU)
| Background blur | 3.32 images/sec | 2.02 images/sec |
| Face detection | 1.59 images/sec | 1 images/sec |
| Horizon detection | 0.1 Gpixels/sec | 0.07 Gpixels/sec |
| Edge detection | 0.15 Gpixels/sec | 0.1 Gpixels/sec |
| Gaussian blur | 0.1 Gpixels/sec | 0.06 Gpixels/sec |
| Feature matching | 0.04 Gpixels/sec | 0.02 Gpixels/sec |
| Stereo matching | 6.45 Gpixels/sec | 4.16 Gpixels/sec |
| Particle physics | 390.3 FPS | 251.6 FPS |
| API | OpenCL | OpenCL |
| Samples | 3 tests | 48 tests |
3DMark
3DMark Steel Nomad Light
| Score | 205 | 135 |
| Stability | 96% | 98% |
| Graphics test | 2 FPS | 1 FPS |
3DMark Wild Life Extreme
| Score | - | 346 |
| Stability | - | 99% |
| Graphics test | - | 2 FPS |
PCMark 3.0
PCMark 3.0
| Web score | 13579 | 9196 |
| Video editing score | 7072 | 6615 |
| Data manipulation score | 8739 | 7349 |
| Photo editing score | 25271 | 25535 |
| Writing score | 15437 | 12807 |
| Phones tested | Less than 3 | 37 models |
Gaming
| PUBG Mobile | - | 86 FPS [Low] |
| Call of Duty: Mobile | - | 37 FPS [Ultra] |
| Shadowgun Legends | - | 91 FPS [Low] |
| World of Tanks Blitz | - | 66 FPS [Ultra] |
| Genshin Impact | - | 48 FPS [Ultra] |
| Mobile Legends: Bang Bang | - | 55 FPS [Ultra] |
| Device | - | Cubot X70 1080 x 2408 |
We provide average results. FPS may differ, depending on game version, OS and other factors.
Recent User Tests
Unisoc T820
| Date | Benchmark | Result |
|---|---|---|
| π 2025-10-29 (ΠΠ½ΡΠ°Ρ) | AnTuTu 11 | 522607 |
| π 2025-09-21 (Hakuna matata) | AnTuTu 11 | 757199 |
| π 2025-02-09 (FilmEXETH) | Geekbench 6 GPU | 2236 |
| π 2025-02-09 (FilmEXETH) | Geekbench 6 CPU | 885 / 2392 |
| π 2024-11-20 (Chico Fico) | Geekbench 6 GPU | 2228 |
MediaTek Helio G99
| Date | Benchmark | Result |
|---|---|---|
| π 2026-10-01 (Josh Gay Is Back Again) | AnTuTu 12 | 706364 |
| π 2026-09-30 (Lucas) | AnTuTu 12 | 607320 |
| π 2026-09-29 (ΠΠ»Π΅ΠΊΡΠ΅ΠΉ) | AnTuTu 12 | 671961 |
| π 2026-09-29 (Josh Gay) | AnTuTu 12 | 700949 |
| π 2026-09-27 (bero) | AnTuTu 12 | 648184 |
Specifications
Full list of technical specifications of Unisoc T820 and Helio G99CPU
| Architecture | 1x 2.7 GHz β Cortex-A76 3x 2.3 GHz β Cortex-A76 4x 2.1 GHz β Cortex-A55 |
2x 2.2 GHz β Cortex-A76 6x 2 GHz β Cortex-A55 |
| Cores | 8 | 8 |
| Frequency | 2700 MHz | 2200 MHz |
| Instruction set | ARMv8.2-A | ARMv8.2-A |
| Process | 6 nanometers | 6 nanometers |
| TDP (Sustained Power Limit) | - | 5 W |
| Manufacturing | TSMC | TSMC |
Graphics
| GPU name | Mali-G57 MP4 | Mali-G57 MP2 |
| Architecture | Valhall 1st gen | Valhall 1st gen |
| GPU frequency | 780 MHz | 1000 MHz |
| Pipelines | 4 | 2 |
| Shading units | 32 | 32 |
| Total shaders | 128 | 64 |
| FLOPS | 199.7 Gigaflops | 128 Gigaflops |
| Vulkan version | 1.3 | 1.3 |
| OpenCL version | 2.0 | 2.0 |
| DirectX version | - | 12 |
AI Accelerator
| Neural processor (NPU) | Yes | Yes |
Memory
| Memory type | LPDDR4X | LPDDR4X |
| Memory frequency | 2133 MHz | 2133 MHz |
| Bus | 2x 16 Bit | 2x 16 Bit |
| Max bandwidth | 17.07 Gb/s | 17 Gb/s |
| Max size | 32 GB | 12 GB |
Multimedia (ISP)
| Storage type | eMMC 5.1, UFS 3.1 | UFS 2.2 |
| Max display resolution | 3440 x 1440 | 2520 x 1080 |
| Max camera resolution | 1x 108MP, 2x 20MP | 1x 108MP, 2x 16MP |
| Video capture | 4K at 60FPS | 2K at 30FPS |
| Video playback | 4K at 60FPS | 2K at 30FPS |
| Video codecs | - H.264 - H.265 |
- H.264 - H.265 - VP9 |
| Audio codecs | - AAC - AIFF - CAF - MP3 - MP4 - WAV |
- AAC - AIFF - CAF - MP3 - MP4 - WAV |
Connectivity
| Modem | Makalu IVY510 | - |
| 4G support | LTE Cat. 15 | LTE Cat. 13 |
| 5G support | Yes | No |
| Download speed | - | Up to 650 Mbps |
| Upload speed | - | Up to 150 Mbps |
| Wi-Fi | 5 | 5 |
| Bluetooth | 5.0 | 5.2 |
| Navigation | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
Info
| Announced | November 2022 | May 2022 |
| Class | Mid range | Mid range |
| Model number | - | MT6789 |
| Official page | Unisoc T820 official site | MediaTek Helio G99 official site |
Further details
Notes on Helio G99:
- The MediaTek G99 Ultimate is essentially the same chip as the G99, with a slightly higher clock speed and no noticeable performance difference. "Ultimate" naming was added for marketing purposes and could confuse the average consumer.
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Total votes: 1736
