CPU A
MediaTek Helio G99
8 cores 2200 MHz 6 nanometers Mali-G57 MC2
Mobile processor comparison
MediaTek Helio G99 vs MediaTek Dimensity 8400
Compare available catalogue specifications. The page highlights factual differences without declaring an overall winner.
CPU B
MediaTek Dimensity 8400
8 cores 3250 MHz 4 nanometers Mali-G720 MP7
Compared fields
39
Different values
34
Quick factual highlights
MediaTek Helio G99
No safely comparable numerical advantage detected.
MediaTek Dimensity 8400
- Higher maximum CPU clock
- Smaller manufacturing process
- Higher listed GPU clock
CPU
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| Architecture | 2x 2.2 GHz - Cortex-A766x 2 GHz - Cortex-A55 | 1x 3.25 GHz - Cortex-A7253x 3 GHz - Cortex-A7254x 2.1 GHz - Cortex-A725 |
| CPU cores | 8 | 8 |
| Clock speed | 2200 MHz | 3250 MHz |
| Instruction set | ARMv8.2-A | ARMv9-A |
| Process technology | 6 nanometers | 4 nanometers |
Cache and memory
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| L2 cache | Not available | 1 MB |
| L3 cache | Not available | 6 MB |
| Memory type | LPDDR4X | LPDDR5X |
| Memory frequency | 4266 MHz | 4266 MHz |
| Memory bus | 2x 16 Bit | 4x 16 Bit |
| Maximum bandwidth | 17.1 Gbit/s | 68.2 Gbit/s |
| Maximum memory | 10 GB | 24 GB |
Graphics and AI
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| GPU | Mali-G57 MC2 | Mali-G720 MP7 |
| GPU architecture | Valhall | Valhall 5th gen |
| GPU clock | 1000 MHz | 1300 MHz |
| Execution units | 2 | Not available |
| Shaders | 32 | 896 |
| FLOPS | Not available | 2329.6 Gigaflops |
| Vulkan | 1.1 | 1.3 |
| OpenCL | 2.0 | 3.2 |
| DirectX | 12 | 12 |
| Neural processor / NPU | Yes | MediaTek NPU 880 |
Display and media
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| Maximum display resolution | 2520 x 1080 | Not available |
| Maximum camera resolution | 1x 108MP, 2x 16MP | 1x 320MP, 3x 32MP |
| Video capture | 2K at 30FPS | 4K at 60FPS |
| Video playback | 2K at 30FPS | 4K at 60FPS |
| 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
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| 4G | LTE Cat. 13 | Not available |
| 5G | No | Yes |
| Download speed | Not available | Up to 5170 Mbps |
| Wi-Fi | 5 | 6 |
| Bluetooth | 5.2 | 6.0 |
| Navigation | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
General
| Specification | MediaTek Helio G99 | MediaTek Dimensity 8400 |
|---|---|---|
| Release | May 2022 | December 2024 |
| Class | Mid range | Mid range |
| Model number | Not available | MT6899, MT6899Z |
| Storage support | UFS 2.2 | UFS 4.0 |
| Devices in database | 10 | Not available |
Real devices
Phones using these processors
Examples found in the existing device catalogue.
MediaTek Helio G99
4G
Oppo Pad Neo
- Display
- LTPS TFT 1.07G colors, 90 Hz, 1720 × 2408 pix…
- RAM
- 8 GB
- Storage
- 128 GB
- Battery
- Li-Ion 8000 mAh
4G
Oppo Pad Air2
- Display
- LTPS TFT 1.07G colors, 90 Hz, 1720 × 2408 pix…
- RAM
- 8 GB
- Storage
- 256 GB
- Battery
- Li-Ion 8000 mAh
4G
Oppo Reno8 T 4G
- Display
- AMOLED, 90 Hz, 1080 × 2400 pixels (6.43 inche…
- RAM
- 8 GB
- Storage
- 128 GB, 256 GB
- Battery
- Li-Ion 5000 mAh
4G
Vivo V25e
- Display
- AMOLED 16M colors 1080 × 2404 pixels (6.44 in…
- RAM
- 8 GB
- Storage
- 256 GB
- Battery
- Li-Ion 4500 mAh
4G
Motorola Moto G72 Dual SIM
- Display
- POLED, 120 Hz, 1080 × 2460 pixels (6.55 inche…
- RAM
- 6 GB
- Storage
- 128 GB
- Battery
- Li-Ion 5000 mAh
Lenovo Xiaoxin Pad Studio 11.5
- Display
- IPS TFT 16.7M colors, 90 Hz, 1200 × 2000 pixe…
- RAM
- 8 GB
- Storage
- 128 GB, 256 GB
- Battery
- Li-Ion 8600 mAh
Lenovo Tab Plus 11.5 2024
- Display
- IPS TFT 16.7M colors, 90 Hz, 1200 × 2000 pixe…
- RAM
- 8 GB
- Storage
- 128 GB, 256 GB
- Battery
- Li-Po 8600 mAh
4G
Lenovo Erazer K30 Pad 12.6
- Display
- IPS TFT 16.7M colors 1600 × 2560 pixels (12.6…
- RAM
- 6 GB, 8 GB, 12 GB
- Storage
- 128 GB, 256 GB, 512 GB
- Battery
- Li-Ion 12000 mAh
MediaTek Dimensity 8400
5G
Realme GT 7T
- Display
- AMOLED, 120 Hz, 1280 × 2800 pixels (6.80 inch…
- RAM
- 12 GB, 8 GB
- Storage
- 256 GB, 512 GB
- Battery
- Si-Car 7000 mAh
5G
Realme Neo7 SE
- Display
- LTPO AMOLED 1.07G colors, 120 Hz (6.78 inches)
- RAM
- 12 GB, 16 GB, 8 GB
- Storage
- 256 GB, 512 GB
- Battery
- Li-Po 7000 mAh
5G
Redmi Turbo 4
- Display
- OLED 68.7G colors, 120 Hz, 1220 × 2712 pixels…
- RAM
- 12 GB, 16 GB
- Storage
- 256 GB, 512 GB
- Battery
- Li-Po 6550 mAh
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