MediaTek Dimensity 8400 vs MediaTek Helio G91
45.9CPU20
46.1GPU27.1
71.7Benchmarks—
73.8Efficiencyspec-based20
5 spec wins — MediaTek Dimensity 84000 spec wins — MediaTek Helio G91
InnoReviews verdict
MediaTek Dimensity 8400 wins this mobile chipset face-off, 56.3 to 22.6, pulling ahead mainly in CPU (+26) and GPU (+19). 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 8400
- Stronger CPU score: 46 vs 20
- Stronger GPU score: 46 vs 27
- 1709% higher 3DMark Wild Life Extreme: 3,400 vs 188
- 356% higher Geekbench 6 (multi): 6,400 vs 1,402
- 251% higher Geekbench 6 (single): 1,450 vs 413
Reasons to pick the MediaTek Helio G91
No decisive spec advantages — this side competes on price and preference.
General
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| Announced | 2024 | 2024 |
| Process | 4 nm+67% | 12 nm |
| TDP (typical) | 6 W | — |
| Architecture | Armv9.2 | Armv8.2 |
CPU
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| Cores | 8 | 8 |
| Core configuration | 1x3.25 GHz Cortex-A725 + 3x3.0 GHz Cortex-A725 + 4x2.1 GHz Cortex-A725 | 2x2.0 GHz Cortex-A75 + 6x1.8 GHz Cortex-A55 |
| Max clock | 3.25 GHz+63% | 2 GHz |
GPU
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| GPU | Arm Mali-G720 MC7 | Arm Mali-G52 MC2 |
| GPU clock | — | 1,000 MHz |
AI
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| NPU | MediaTek NPU 880 | — |
Memory
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| Memory type | LPDDR5X-8533 | LPDDR4X-3600 |
| Max bandwidth | 68.3 GB/s | — |
Connectivity
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| Modem | Integrated 5G modem | Integrated 4G LTE (Cat-7 DL / Cat-13 UL) |
| Max download | 5.2 Gbps | — |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 5 |
| Bluetooth | 5.4 | 5.0 |
Media
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| Max display | — | FHD+ @ 90Hz |
| Video capture | 4K@60fps | 2K@30fps |
Benchmarks
| Spec | MediaTek Dimensity 8400 | MediaTek Helio G91 |
|---|---|---|
| AnTuTu | 1,946,644Top 34% | — |
| AnTuTu 11 (CPU) | 560,176Top 39% | — |
| AnTuTu 11 (GPU) | 642,040Top 31% | — |
| AnTuTu 11 (Memory) | 339,619Top 29% | — |
| AnTuTu 11 (UX) | 404,809Top 39% | — |
| Geekbench 6 (single) | 1,450+251%Top 31% | 413Bottom 12% |
| Geekbench 6 (multi) | 6,400+356%Top 18% | 1,402Bottom 15% |
| 3DMark Wild Life Extreme | 3,400+1709%Top 34% | 188Bottom 2% |
Related comparisons
MediaTek Dimensity 8400vs Apple A16 BionicVSMediaTek Dimensity 8400vs MediaTek Dimensity 9200+VSMediaTek Dimensity 8400vs Samsung Exynos 2400eVSMediaTek Dimensity 8400vs Qualcomm Snapdragon 8 Gen 2VSMediaTek Helio G91vs Qualcomm Snapdragon 820VSMediaTek Helio G91vs Unisoc SC9863AVSMediaTek Helio G91vs MediaTek Helio G80VSMediaTek Helio G91vs MediaTek Helio G81VS