Quick Answer
The MediaTek Dimensity 7400 and Dimensity 6400 are both 4nm mobile chipsets designed for mid-range devices. The Dimensity 7400 typically offers a more advanced CPU configuration with higher-performance cores and a newer-generation GPU, while the Dimensity 6400 provides capable performance with a focus on efficiency. The choice between them generally depends on the specific performance and feature priorities of the device manufacturer.
MediaTek Dimensity 7400 vs MediaTek Dimensity 6400: Full Comparison
Introduction
MediaTek’s Dimensity series provides a range of options for smartphone manufacturers, balancing performance, features, and power efficiency. Comparing the Dimensity 7400 and Dimensity 6400 helps clarify the technological progression and target segments within MediaTek’s portfolio. This analysis will break down the key differences in CPU, GPU, connectivity, and imaging capabilities, providing a clearer understanding of where each chipset is typically positioned in the market.
CPU & Performance
The core architecture is a primary differentiator between these two chipsets. The Dimensity 7400 utilizes a newer and more powerful CPU configuration compared to the Dimensity 6400.
- Dimensity 7400: Features an octa-core CPU with 2x Arm Cortex-A78 performance cores (clocked at up to 2.8GHz) and 6x Arm Cortex-A55 efficiency cores. This “2+6” setup is designed to handle demanding tasks more effectively.
- Dimensity 6400: Also an octa-core CPU, but it uses a configuration of 2x Arm Cortex-A76 performance cores and 6x Arm Cortex-A55 efficiency cores. The A76 cores are from an older generation than the A78, which typically results in a performance and efficiency gap.
Both are built on a 4nm manufacturing process, which aids in power efficiency, but the 7400’s core design generally provides a noticeable uplift in CPU-intensive tasks.
GPU & Gaming
Graphics performance is another area where the two chipsets diverge, impacting gaming and UI fluidity.
- Dimensity 7400: Integrates the Arm Mali-G615 MC2 GPU. This GPU supports advanced graphics APIs and features like MediaTek’s HyperEngine technologies for smoother gaming experiences, variable refresh rate management, and improved power efficiency during gameplay.
- Dimensity 6400: Equipped with the Arm Mali-G57 MC2 GPU. While a capable GPU for its class, the G57 is from an earlier generation than the G615, which typically translates to lower peak graphics performance and fewer supported advanced features.
Devices with the Dimensity 7400 are generally better suited for more demanding mobile games at higher graphical settings.
Imaging & AI Capabilities
The integrated image signal processors (ISPs) and AI processing units (APUs) define the camera and computational photography potential.
- Dimensity 7400: Features a dual 14-bit HDR-ISP that can support camera sensors up to 200MP. It supports 4K HDR video recording and incorporates MediaTek’s Imagiq 765 technology for features like AI-NR low-light photography and real-time bokeh tracking.
- Dimensity 6400: Includes a dual 14-bit ISP capable of supporting sensors up to 108MP. It supports 4K video recording and MediaTek’s Imagiq 5G technology, offering capable AI-enhanced photography features but with a lower maximum sensor resolution than the 7400.
The Dimensity 7400’s ISP allows for higher-resolution sensors and more advanced real-time video processing features.
Connectivity & 5G
Both chipsets integrate 5G modems, but there are differences in their supported technologies and peak speeds.
- Dimensity 7400: Integrates a 3GPP Release-16 5G modem with support for both sub-6GHz networks. It features MediaTek’s 5G UltraSave 3.0+ technology for enhanced power efficiency and can achieve higher peak download speeds in ideal conditions.
- Dimensity 6400: Includes a 3GPP Release-16 5G modem focused on sub-6GHz connectivity. It utilizes MediaTek’s 5G UltraSave technology for efficient operation. Its peak theoretical speeds are typically lower than those of the 7400.
Both provide essential 5G connectivity, with the 7400 offering more advanced modem features and typically higher potential speeds.
Comparison Table: MediaTek Dimensity 7400 vs Dimensity 6400
| Feature | MediaTek Dimensity 7400 | MediaTek Dimensity 6400 |
|---|---|---|
| Manufacturing Process | 4nm | 4nm |
| CPU Architecture | 2x Cortex-A78 (up to 2.8GHz) + 6x Cortex-A55 | 2x Cortex-A76 (up to 2.4GHz) + 6x Cortex-A55 |
| GPU | Arm Mali-G615 MC2 | Arm Mali-G57 MC2 |
| Max Display Support | WQHD+ @ 120Hz / FHD+ @ 180Hz | FHD+ @ 120Hz |
| Camera ISP | Dual 14-bit HDR-ISP (Imagiq 765), up to 200MP | Dual 14-bit ISP (Imagiq 5G), up to 108MP |
| Video Recording | 4K HDR video | 4K video |
| 5G Modem | Integrated 3GPP R16 5G (Sub-6GHz), 5G UltraSave 3.0+ | Integrated 3GPP R16 5G (Sub-6GHz), 5G UltraSave |
| Memory Support | LPDDR5 RAM, UFS 3.1 storage | LPDDR4x RAM, UFS 2.2 storage |
| AI Processing Unit (APU) | MediaTek APU 655 | MediaTek APU 5G |
| Wi-Fi / Bluetooth | Wi-Fi 6E, Bluetooth 5.3 | Wi-Fi 5, Bluetooth 5.2 |
Frequently Asked Questions (FAQ)
What is the main difference between the Dimensity 7400 and 6400?
The primary differences lie in the CPU and GPU generations. The Dimensity 7400 uses newer Cortex-A78 CPU cores and a Mali-G615 GPU, while the Dimensity 6400 uses older Cortex-A76 cores and a Mali-G57 GPU. This generally gives the 7400 a performance advantage in both processing and graphics.
Which chipset supports a better camera system?
The Dimensity 7400 typically supports higher-resolution camera sensors (up to 200MP vs. 108MP) and includes a more advanced image signal processor (Imagiq 765) capable of 4K HDR video recording, offering more potential for advanced imaging features.
Do both chipsets support 5G connectivity?
Yes, both the MediaTek Dimensity 7400 and Dimensity 6400 integrate 3GPP Release-16 compliant 5G modems for sub-6GHz networks. However, the modem in the Dimensity 7400 often supports higher peak speeds and more advanced power-saving technologies.
What type of devices are these chipsets found in?
Both are designed for mid-range smartphones. The Dimensity 7400 is typically positioned in higher-tier mid-range or “upper mid-range” devices that emphasize performance and camera capabilities, while the Dimensity 6400 is often found in more budget-conscious mid-range models.
Final Thoughts
The MediaTek Dimensity 7400 represents a clear generational step forward from the Dimensity 6400, offering improvements in CPU architecture, GPU performance, camera support, and connectivity features like Wi-Fi 6E. The Dimensity 6400 remains a capable 4nm chipset for devices where a balance of efficiency and cost is a primary consideration. The final implementation by smartphone manufacturers—including choices for cooling, software optimization, and other hardware components—will ultimately determine the real-world user experience in any given device.