MediaTek has officially unveiled the Dimensity 9400, its fastest mobile chipset to date. Built on TSMC’s 3nm process, the company claims that its latest chipset is “up to 40 per cent more power efficient” than its predecessor. The octa-core chipset features an ARM Cortex-X295 core running at 3.62GHz, 3 ARM Cortex-X4 cores, and 4 Cortex-A720 cores. While the Cortex-X295 is new, the other two cores were unveiled last year at Computex. According to MediaTek, the new configuration gives the Dimensity 9400 a 35 per cent and 28 per cent performance boost in single and multi-core performance benchmarks compared to its predecessor. On the GPU side of things, the new ARM 12-core Immortalis-G295 offers up to 40 per cent more ray tracing performance than before. The Dimensity 9400 also brings some improvements to the NPU, which the company says offers “80 per cent faster large language model prompt performance”, and enables AI video generation and support for creating agentic applications. For tri-fold smartphones like the Huawei Mate XT Ultimate Edition, the chipset brings support for scaling content. The chipset can record videos in 8K at 60fps and supports full-range HDR zoom on devices that can implement it. On the connectivity side of things, MediaTek says it has refreshed the 5G modem with up to 7 Gbps performance and a new 4nm Wi-Fi/Bluetooth combo chip that consumes even less power. MediaTek Dimensity 9400 will be available sometime in Q4 of 2024. The Vivo X200 series, which will be launched in China on October 14 will be the first smartphone to sport the Dimensity 9400 chipset.