MediaTek Dimensity 6400 vs MediaTek Helio G81
26.3CPU20
21.3GPU—
—Benchmarks21.5
36Efficiencyspec-based44.2
5 spec wins — MediaTek Dimensity 64000 spec wins — MediaTek Helio G81
InnoReviews verdict
This one is close to a dead heat: MediaTek Dimensity 6400 scores 26.6 against 26 for MediaTek Helio G81. Pick by the categories that matter to you — MediaTek Dimensity 6400 edges ahead in CPU, or by price.
Which would you pick?
Key differences
Reasons to pick the MediaTek Dimensity 6400
- Stronger CPU score: 26 vs 20
- 89% higher Geekbench 6 (single): 792 vs 420
- 52% higher Geekbench 6 (multi): 2,041 vs 1,340
- 50% lower process: 6 nm vs 12 nm
- 25% higher Max clock: 2.5 GHz vs 2 GHz
Reasons to pick the MediaTek Helio G81
No decisive spec advantages — this side competes on price and preference.
General
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G81 |
|---|---|---|
| Announced | 2025 | 2024 |
| Process | 6 nm+50% | 12 nm |
| TDP (typical) | — | 5 W |
| Architecture | Armv8.2 | Armv8.2 |
CPU
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G81 |
|---|---|---|
| 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 G81 |
|---|---|---|
| GPU | Arm Mali-G57 MC2 | Arm Mali-G52 MC2 |
Memory
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G81 |
|---|---|---|
| Memory type | LPDDR4X-4266 | LPDDR4X-1800 |
| Max bandwidth | — | 14.4 GB/s |
Connectivity
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G81 |
|---|---|---|
| Modem | Integrated 5G modem (3GPP Release 16) | Integrated LTE Cat-7 |
| 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 G81 |
|---|---|---|
| Max display | FHD+ @ 120Hz | FHD+ @ 90Hz |
| Video capture | — | 2K@30fps |
Benchmarks
| Spec | MediaTek Dimensity 6400 | MediaTek Helio G81 |
|---|---|---|
| AnTuTu | — | 265,000 |
| Geekbench 6 (single) | 792+89%Bottom 34% | 420Bottom 13% |
| Geekbench 6 (multi) | 2,041+52%Bottom 32% | 1,340Bottom 12% |
| 3DMark Wild Life Extreme | 356Bottom 6% | — |
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