Helio G99 vs Dimensity 9400
We compared two 8-core processors: MediaTek Helio G99 (with Mali-G57 MP2 graphics) and Dimensity 9400 (Mali-G925 Immortalis MP12). 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 MediaTek Dimensity 9400
- Performs 38.7x better in floating-point computations
- Shows significantly better (up to 5.1x) AnTuTu 11 score β 2825K vs 554K
- Supports 402% higher memory bandwidth (85.3 against 17 GB/s)
- Has a smaller size transistor (3 versus 6 nm)
- 65% higher CPU clock speed (3620 vs 2200 MHz)
- Higher GPU frequency (~61%)
- Better instruction set architecture
Benchmarks
Performance tests in popular benchmarksAnTuTu 11
| CPU | 218545 | 900074 |
| GPU | 43804 | 972096 |
| Memory | 156545 | 345330 |
| UX | 135696 | 607687 |
| Total score | 554590 | 2825187 |
| Samples | [313 tests] | [72 tests] |
GeekBench 6
Single-Core Score
Multi-Core Score
| Asset compression | 96.3 MB/sec | 344.4 MB/sec |
| HTML 5 Browser | 52 pages/sec | 251 pages/sec |
| PDF Renderer | 72.2 Mpixels/sec | 258.4 Mpixels/sec |
| Image detection | 38.5 images/sec | 209.7 images/sec |
| HDR | 63.4 Mpixels/sec | 267.4 Mpixels/sec |
| Background blur | 5.68 images/sec | 30.9 images/sec |
| Photo processing | 16.6 images/sec | 84.4 images/sec |
| Ray tracing | 2.79 Mpixels/sec | 9.3 Mpixels/sec |
| Samples | 82 tests | 22 tests |
Compute Score (GPU)
| Background blur | 2.02 images/sec | 43 images/sec |
| Face detection | 1 images/sec | 19.8 images/sec |
| Horizon detection | 0.07 Gpixels/sec | 0.78 Gpixels/sec |
| Edge detection | 0.1 Gpixels/sec | 0.63 Gpixels/sec |
| Gaussian blur | 0.06 Gpixels/sec | 1.71 Gpixels/sec |
| Feature matching | 0.02 Gpixels/sec | 0.29 Gpixels/sec |
| Stereo matching | 4.16 Gpixels/sec | 73.3 Gpixels/sec |
| Particle physics | 251.6 FPS | 3456.3 FPS |
| API | OpenCL | OpenCL |
| Samples | 48 tests | 17 tests |
3DMark
3DMark Steel Nomad Light
| Score | 135 | 2371 |
| Stability | 98% | 61% |
| Graphics test | 1 FPS | 18 FPS |
3DMark Solar Bay
| Score | - | 10747 |
| Graphics test | - | 41 FPS |
| Section 1 | - | 46 FPS |
| Section 2 | - | 42 FPS |
| Section 3 | - | 36 FPS |
3DMark Wild Life Extreme
| Score | 346 | 6272 |
| Stability | 99% | - |
| Graphics test | 2 FPS | 37 FPS |
PCMark 3.0
PCMark 3.0
| Web score | 9196 | 14420 |
| Video editing score | 6615 | 6211 |
| Data manipulation score | 7349 | 16192 |
| Photo editing score | 25535 | 30985 |
| Writing score | 12807 | 19569 |
| Phones tested | 37 models | 6 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
MediaTek Helio G99
| Date | Benchmark | Result |
|---|---|---|
| π 2026-11-01 (Ruul) | AnTuTu 12 | 721014 |
| π 2026-11-01 (pao) | AnTuTu 12 | 680958 |
| π 2026-10-31 (Wayne) | AnTuTu 11 | 590192 |
| π 2026-10-31 (Wayne) | AnTuTu 12 | 773526 |
| π 2026-10-30 (Cookies) | AnTuTu 12 | 650012 |
MediaTek Dimensity 9400
| Date | Benchmark | Result |
|---|---|---|
| π 2026-10-30 (Xarvis) | Geekbench 7 GPU | 16121 |
| π 2026-10-30 (Xarvis) | Geekbench 7 CPU | 1986 / 6946 |
| π 2026-10-30 (Xarvis) | AnTuTu 12 | 2982245 |
| π 2026-10-27 (Xarvis) | Geekbench 7 GPU | 12850 |
| π 2026-10-27 (Xarvis) | Geekbench 7 CPU | 1660 / 6478 |
Specifications
Full list of technical specifications of Helio G99 and Dimensity 9400CPU
| Architecture | 2x 2.2 GHz β Cortex-A76 6x 2 GHz β Cortex-A55 |
1x 3.62 GHz β Cortex-X925 3x 3.3 GHz β Cortex-X4 4x 2.4 GHz β Cortex-A720 |
| Cores | 8 | 8 |
| Frequency | 2200 MHz | 3620 MHz |
| Instruction set | ARMv8.2-A | ARMv9.2-A |
| L1 cache | - | 128 KB |
| L2 cache | - | 2 MB |
| L3 cache | - | 12 MB |
| Process | 6 nanometers | 3 nanometers |
| TDP (Sustained Power Limit) | 5 W | - |
| Manufacturing | TSMC | TSMC |
Graphics
| GPU name | Mali-G57 MP2 | Mali-G925 Immortalis MP12 |
| Architecture | Valhall 1st gen | Valhall 5th gen |
| GPU frequency | 1000 MHz | 1612 MHz |
| Pipelines | 2 | 12 |
| Shading units | 32 | 128 |
| Total shaders | 64 | 1536 |
| FLOPS | 128 Gigaflops | 4952.1 Gigaflops |
| Vulkan version | 1.3 | 1.3 |
| OpenCL version | 2.0 | 3.0 |
| DirectX version | 12 | 12.1 |
AI Accelerator
| Neural processor (NPU) | Yes | MediaTek NPU 890 |
| NPU theoretical performance | - | 50 TOPS |
Memory
| Memory type | LPDDR4X | LPDDR5X |
| Memory frequency | 2133 MHz | 5333 MHz |
| Bus | 2x 16 Bit | 4x 16 Bit |
| Max bandwidth | 17 Gb/s | 85.3 Gb/s |
| Max size | 12 GB | 24 GB |
Multimedia (ISP)
| Storage type | UFS 2.2 | UFS 4.0 |
| Max display resolution | 2520 x 1080 | 3840 x 2160 |
| Max camera resolution | 1x 108MP, 2x 16MP | 1x 320MP |
| Video capture | 2K at 30FPS | 8K at 60FPS, 4K at 120FPS |
| Video playback | 2K at 30FPS | 8K at 60FPS, 4K at 120FPS |
| Video codecs | - H.264 - H.265 - VP9 |
- H.264 - H.265 - AV1 - VP9 |
| Audio codecs | - AAC - AIFF - CAF - MP3 - MP4 - WAV |
- AAC LC - FLAC - HE-AACv1 - HE-AACv2 - MP3 |
Connectivity
| 4G support | LTE Cat. 13 | LTE Cat. 24 |
| 5G support | No | Yes |
| Download speed | Up to 650 Mbps | Up to 7300 Mbps |
| Upload speed | Up to 150 Mbps | - |
| Wi-Fi | 5 | 7 |
| Bluetooth | 5.2 | 6.0 |
| Navigation | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
Info
| Announced | May 2022 | October 2024 |
| Class | Mid range | Flagship |
| Model number | MT6789 | MT6991, MT6991Z/CZA, MT6991W/CZA |
| Official page | MediaTek Helio G99 official site | MediaTek Dimensity 9400 official site |
| Successor | - | - MediaTek Dimensity 9600 Pro |
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.
Cast your vote
Total votes: 64
