The MediaTek Dimensity 8400 SoC has officially launched, bringing a significant generational leap over the Dimensity 8300. Designed for premium mid-range smartphones, this chipset combines an all-big core CPU architecture with MediaTek's new Dimensity Agentic AI Engine (DAE) to deliver smarter, faster performance for both everyday tasks and demanding gaming sessions.
- The MediaTek Dimensity 8400 SoC features an octa-core Arm Cortex-A725 CPU clocked at up to 3.25GHz, delivering 41% better multi-core performance than the Dimensity 8300.
- Its Mali-G720 GPU gains 24% more peak performance and 42% greater energy efficiency, supported by Adaptive Gaming Technology 3.0 for smoother gameplay.
- The built-in NPU 880 supports global LLM, SLM, and LMM AI models, while the 5G-A modem reaches speeds up to 5.17Gbps.
MediaTek Dimensity 8400 SoC: CPU and Performance Gains
At the heart of the Dimensity 8400 lies an octa-core Arm Cortex-A725 processor running at up to 3.25GHz. Unlike designs that mix performance and efficiency cores, this chipset adopts an all-big core configuration, meaning every core is built for speed. MediaTek claims this translates to 41% better multi-core performance compared to the Dimensity 8300, while simultaneously reducing peak power consumption by 44%. That combination of raw power and improved efficiency makes it an attractive option for manufacturers targeting the premium tier without flagship price tags.
For those interested in the broader MediaTek chipset lineup, the Dimensity 8400 sits above the 8300 and represents the company's push to bring high-end CPU architecture to a wider range of devices.
GPU, Gaming, and AI Capabilities
The Dimensity 8400 pairs its CPU with an Arm Mali-G720 GPU, which MediaTek says offers 24% higher peak performance and 42% greater energy efficiency versus the previous generation. Two dedicated gaming technologies accompany the GPU: the MediaTek Frame Rate Converter (MFRC), which optimises game and app performance in real time for consistently smooth frame delivery, and MediaTek Adaptive Gaming Technology (MAGT) 3.0, which intelligently balances performance and battery life during extended play sessions.
On the AI front, the MediaTek Dimensity 8400 SoC introduces the Dimensity Agentic AI Engine (DAE), designed to accelerate on-device AI applications. The companion NPU 880 is built to support all major large language models (LLMs), small language models (SLMs), and large multimodal models (LMMs) available worldwide, enabling sophisticated generative AI features directly on-device without relying on the cloud.
Imaging and Connectivity
Camera performance gets a boost through the MediaTek Imagiq 1080 ISP. This image signal processor uses QPD remosaic technology to capture more light in challenging conditions, achieve faster and more accurate autofocus, and produce sharper, higher-resolution images. Whether users are shooting in low light or fast-moving scenes, the Imagiq 1080 is engineered to keep up.
Connectivity is handled by an integrated 5G-A modem featuring 3CC carrier aggregation (3CC-CA), with theoretical downlink speeds reaching up to 5.17Gbps. This positions the Dimensity 8400 well for markets where advanced 5G networks are already rolling out.
Frequently Asked Questions
What improvements does the Dimensity 8400 offer over the Dimensity 8300?
The MediaTek Dimensity 8400 SoC delivers 41% better multi-core CPU performance and 44% lower peak power consumption compared to the Dimensity 8300. Its Mali-G720 GPU also gains 24% more peak performance and 42% greater energy efficiency, while adding support for advanced AI models through the new NPU 880 and Dimensity Agentic AI Engine.
Does the Dimensity 8400 support on-device AI models?
Yes. The NPU 880 inside the Dimensity 8400 is designed to run all major LLMs, SLMs, and LMMs globally. Combined with the Dimensity Agentic AI Engine (DAE), the chipset can handle generative AI tasks locally on the device, reducing latency and preserving privacy compared to cloud-based solutions.
