MediaTek Dimensity 6400 vs MediaTek Helio G91
26.3CPU20
21.3GPU27.1
36Efficiencyspec-based20
6 spec wins — MediaTek Dimensity 64000 spec wins — MediaTek Helio G91
InnoReviews verdict
MediaTek Dimensity 6400 wins this mobile chipset face-off, 26.6 to 22.6, pulling ahead mainly in CPU (+6). MediaTek Helio G91 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the MediaTek Dimensity 6400
- Stronger CPU score: 26 vs 20
- 92% higher Geekbench 6 (single): 792 vs 413
- 89% higher 3DMark Wild Life Extreme: 356 vs 188
- 50% lower process: 6 nm vs 12 nm
- 46% higher Geekbench 6 (multi): 2,041 vs 1,402
Reasons to pick the MediaTek Helio G91
- Stronger GPU score: 27 vs 21
General
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Announced | 2025 | 2024 |
| Process | 6 nm+50% | 12 nm |
| Architecture | Armv8.2 | Armv8.2 |
CPU
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Cores | 8 | 8 |
| Core configuration | 2x2.5 GHz Cortex-A76 + 6x2.0 GHz Cortex-A55 | 2x2.0 GHz Cortex-A75 + 6x1.8 GHz Cortex-A55 |
| Max clock | 2.5 GHz+25% | 2 GHz |
GPU
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| GPU | Arm Mali-G57 MC2 | Arm Mali-G52 MC2 |
| GPU clock | — | 1,000 MHz |
Memory
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Memory type | LPDDR4X-4266 | LPDDR4X-3600 |
Connectivity
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Modem | Integrated 5G modem (3GPP Release 16) | Integrated 4G LTE (Cat-7 DL / Cat-13 UL) |
| Max download | 3.3 Gbps | — |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.2 | 5.0 |
Media
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Max display | FHD+ @ 120Hz | FHD+ @ 90Hz |
| Video capture | — | 2K@30fps |
Benchmarks
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G91 |
|---|---|---|
| Geekbench 6 (single) | 792+92%Bottom 34% | 413Bottom 12% |
| Geekbench 6 (multi) | 2,041+46%Bottom 32% | 1,402Bottom 15% |
| 3DMark Wild Life Extreme | 356+89%Bottom 6% | 188Bottom 2% |
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