MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks vs MediaTek Helio G91-Ultra Chipset Review — Specifications and Benchmarks
There are 8 key differences between MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks and MediaTek Helio G91-Ultra Chipset Review — Specifications and Benchmarks.
ميديا تيك (MediaTek)
MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks
5.5
Key differences
| MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks | MediaTek Helio G91-Ultra Chipset Review — Specifications and Benchmarks | |
|---|---|---|
| Fabrication | 6 nm (TSMC) | 12nm |
| Announced | February 2025 (as the base Dimensity 6400) — appeared as the "Turbo" exclusively with the Realme 16 in January 2026 | 2024 (base), 2026 (Ultra) |
| Core configuration | 2× Cortex-A76 at 2.5 GHz + 6× Cortex-A55 at 2.0 GHz | 2x Cortex-A75 2.0GHz + 6x Cortex-A55 1.8GHz |
| Max clock | 2.5 GHz | 2.0 GHz |
| GPU | Mali-G57 MC2 | Mali-G52 MC2 |
| GPU clock | No specific official figure from MediaTek | Up to 1000MHz (improved variant) |
| 5G | Yes | No |
| AnTuTu | ~544,000–604,000 (varies with the device and accompanying RAM) | Approximately 258,000-277,000 |
MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks
Read the full review →MediaTek Helio G91-Ultra Chipset Review — Specifications and Benchmarks
The Helio G91-Ultra targets the very budget segment, though the "Ultra" naming isn't matched by significant real performance differences over the base chip.
- +Suited for light daily use and basic games.
- +Good power efficiency for this price tier.
- +Very low cost suited for very budget phones.
- −No 5G network support.
- −The real gap over the base variant is limited despite the "Ultra" naming.
- −Relatively older 12nm process compared to newer rivals.
Full specifications
| MediaTek Dimensity 6400 Turbo Chipset Review — Specifications and Benchmarks | MediaTek Helio G91-Ultra Chipset Review — Specifications and Benchmarks | |
|---|---|---|
| Manufacturing | ||
| Manufacturer | MediaTek | MediaTek |
| Fabrication | 6 nm (TSMC) | 12nm |
| Announced | February 2025 (as the base Dimensity 6400) — appeared as the "Turbo" exclusively with the Realme 16 in January 2026 | 2024 (base), 2026 (Ultra) |
| Availability | Available | Available |
| CPU | ||
| CPU cores | 8 cores | 8 cores |
| Core configuration | 2× Cortex-A76 at 2.5 GHz + 6× Cortex-A55 at 2.0 GHz | 2x Cortex-A75 2.0GHz + 6x Cortex-A55 1.8GHz |
| Max clock | 2.5 GHz | 2.0 GHz |
| Architecture | ARMv8.2-A, 64-bit (not ARMv9) | — |
| Graphics & AI | ||
| GPU | Mali-G57 MC2 | Mali-G52 MC2 |
| GPU clock | No specific official figure from MediaTek | Up to 1000MHz (improved variant) |
| NPU | Not officially documented as a separate unit (a budget chip with no AI marketing focus) | — |
| AI performance | Not officially announced | — |
| Memory & connectivity | ||
| Supported RAM | LPDDR4X | — |
| Max RAM | 2133 MHz | — |
| Supported storage | UFS 2.2 | — |
| Modem | Integrated Sub-6 5G modem, with dual 5G SIM support | — |
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 5 (officially from the chip) — some devices such as the Realme 16 add Wi-Fi 6 via an external module | — |
| Bluetooth | 5.2 (officially from the chip) — the Realme 16 uses 5.3/5.4 at device level | — |
| Benchmarks | ||
| AnTuTu | ~544,000–604,000 (varies with the device and accompanying RAM) | Approximately 258,000-277,000 |
| Geekbench single-core | ~764 – 803 | — |
| Geekbench multi-core | ~1978 – 2159 | Approximately 1,339-1,417 |
| Extra features | ||
| Key features | Relatively good thermal stability in long tests (99.5% consistency), camera support up to 108 MP, displays up to 120Hz at FHD+ | — |
| Phones using it | Realme 16 5G (as the "Turbo") — the same base chip is also used in devices such as the Motorola Moto G87, Realme 15T and Tecno Pova Slim 5G under the standard Dimensity 6400 name | Xiaomi Redmi 17 4G |
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