CPU A
MediaTek Dimensity 8400
8 cores 3250 MHz 4 nanometers Mali-G720 MP7
Mobile processor comparison
MediaTek Dimensity 8400 vs Unisoc T820
Compare available catalogue specifications. The page highlights factual differences without declaring an overall winner.
CPU B
Unisoc T820
8 cores 2700 MHz 6 nanometers Mali-G57 MP4
Compared fields
37
Different values
31
Quick factual highlights
MediaTek Dimensity 8400
- Higher maximum CPU clock
- Smaller manufacturing process
- Higher listed GPU clock
Unisoc T820
No safely comparable numerical advantage detected.
CPU
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| Architecture | 1x 3.25 GHz - Cortex-A7253x 3 GHz - Cortex-A7254x 2.1 GHz - Cortex-A725 | 1x 2.7 GHz - Cortex-A763x 2.3 GHz - Cortex-A764x 2.1 GHz - Cortex-A55 |
| CPU cores | 8 | 8 |
| Clock speed | 3250 MHz | 2700 MHz |
| Instruction set | ARMv9-A | ARMv8.2-A |
| Process technology | 4 nanometers | 6 nanometers |
Cache and memory
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| L2 cache | 1 MB | Not available |
| L3 cache | 6 MB | Not available |
| Memory type | LPDDR5X | LPDDR4X |
| Memory frequency | 4266 MHz | 2133 MHz |
| Memory bus | 4x 16 Bit | 2x 16 Bit |
| Maximum bandwidth | 68.2 Gbit/s | 17.07 Gbit/s |
| Maximum memory | 24 GB | 32 GB |
Graphics and AI
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| GPU | Mali-G720 MP7 | Mali-G57 MP4 |
| GPU architecture | Valhall 5th gen | Valhall 1st gen |
| GPU clock | 1300 MHz | 780 MHz |
| Shaders | 896 | 64 |
| FLOPS | 2329.6 Gigaflops | 435.2 Gigaflops |
| Vulkan | 1.3 | 1.3 |
| OpenCL | 3.2 | 2.0 |
| DirectX | 12 | Not available |
| Neural processor / NPU | MediaTek NPU 880 | Yes |
Display and media
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| Maximum display resolution | Not available | 3440 x 1440 |
| Maximum camera resolution | 1x 320MP, 3x 32MP | 1x 108MP, 2x 20MP |
| Video capture | 4K at 60FPS | 4K at 60FPS |
| Video playback | 4K at 60FPS | 4K at 60FPS |
| Video codecs | - H.264 - H.265 - AV1 - VP9 | - H.264 - H.265 |
| Audio codecs | - AAC LC - FLAC - HE-AACv1 - HE-AACv2 - MP3 | - AAC - AIFF - CAF - MP3 - MP4 - WAV |
Connectivity
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| 4G | Not available | LTE Cat. 15 |
| 5G | Yes | Yes |
| Download speed | Up to 5170 Mbps | Not available |
| Wi-Fi | 6 | 5 |
| Bluetooth | 6.0 | 5.0 |
| Navigation | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo |
General
| Specification | MediaTek Dimensity 8400 | Unisoc T820 |
|---|---|---|
| Release | December 2024 | November 2022 |
| Class | Mid range | Mid range |
| Model number | MT6899, MT6899Z | Not available |
| Storage support | UFS 4.0 | eMMC 5.1, UFS 3.1 |
Real devices
Phones using these processors
Examples found in the existing device catalogue.
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
Unisoc T820
No linked devices were found in the sampled legacy tables.
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