The MediaTek Dimensity 7400 (MT6878V) is an ARM-based mid-range SoC primarily for Android-based smartphones. The integrated CPU is divided into two clusters: four high-performance ARM Cortex-A78 cores with a clock speed of up to 2.6 GHz and four efficient ARM Cortex-A55 cores running at up to 2 GHz.
CPU performance averages slightly above the Qualcomm Snapdragon 7 Gen 3 in our benchmarks but remains slightly behind the Qualcomm Snapdragon 7 Gen 4. The current Snapdragon 6 Gen 5 is at a comparable level in our tests. This places the SoC in the lower mid-range segment.
In addition to the integrated ARM Mali-G615 MC2 iGPU, the 7400 also offers a MediaTek NPU 655 for AI tasks. A 5G multimode modem (2G to 5G) with a download speed of up to 3.27 Gbit/s is also integrated. Wi-Fi 6E and Bluetooth 5.4 are also supported.
The chip is manufactured using a modern 4 nm process.
| Codename | Cortex-A78 / A55 |
| Clock Rate | 2000 - 2600 MHz |
| Number of Cores / Threads | 8 / 8 4 x 2.6 GHz ARM Cortex-A78 4 x 2.0 GHz ARM Cortex-A55 |
| Manufacturing Technology | 4 nm |
| GPU | ARM Mali-G615 MP2 |
| 64 Bit | 64 Bit support |
| Architecture | ARM |
| Announcement Date | 02/25/2025 |
- Average benchmark values
Lenovo Tab Plus Gen 2: ARM Mali-G615 MP2, 12.10", 0.8 kg
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