MediaTek Dimensity 9400 vs MediaTek Dimensity 8300

MediaTek Dimensity 9400 vs MediaTek Dimensity 8300

MediaTek Dimensity 9400 and Dimensity 8300 belong to different classes.
Dimensity 9400 is a flagship chip for top smartphones of 2024-2025.
Dimensity 8300 is a powerful upper mid-range chip focused on a balance of performance and power efficiency.

Short summary

• Dimensity 9400 is noticeably faster than Dimensity 8300 in both CPU and GPU, with almost double overall performance.

• In games, 9400 maintains higher FPS at max settings and is better suited for high refresh rate displays.

• In terms of camera and AI capabilities, 9400 is a true flagship: more compute blocks, more advanced ISP, 8K video support and extended AI features.

• Dimensity 8300 is still a very fast chip, but it is targeted at more affordable devices with a better price/battery balance.

In short:

• if you need maximum performance and a long-term safety margin - Dimensity 9400

• if you want high speed without paying extra for a flagship - Dimensity 8300

Architecture and CPU

Dimensity 9400

• Process: 3 nm (TSMC).

• CPU configuration: 1 ultra-high-performance Cortex-X925 core, 3 high-performance Cortex-X4 cores, 4 efficiency Cortex-A720 cores.

• Modern Armv9 architecture with larger caches and high IPC.

This configuration delivers very high single-core performance (smooth UI, heavy apps) and strong multi-core performance for gaming, photo and video processing, and AI workloads.

Dimensity 8300

• Process: 4 nm.

• CPU configuration: performance Cortex-A715 cores and efficiency Cortex-A510 cores in a classic big.LITTLE layout.

• Also Armv9, but with a more modest overall performance level.

CPU conclusion

• Dimensity 9400 clearly outperforms 8300 in both single-core and multi-core workloads - it is a true flagship level.

• Dimensity 8300 provides a fast and smooth interface, handles heavy apps easily, but without the same large performance margin as 9400.

Graphics and gaming

Dimensity 9400

• Flagship Arm Immortalis family GPU.

• Hardware ray tracing support and modern graphics APIs.

• Designed for stable high FPS in heavy games at high and max settings, including on high refresh rate displays.

Dimensity 8300

• Mali G615 series GPU.

• Upper mid-range level:

  • comfortable gaming in Full HD,

  • high graphics settings in most popular games,

  • 60 FPS and above in well-optimized titles.

Gaming experience

• On Dimensity 9400 you can run the heaviest games at max graphics settings with high FPS and a good margin for the future.

• On Dimensity 8300 games run comfortably at high settings, but in the most demanding scenes and during long sessions FPS drops will be more noticeable.

Camera and video

Dimensity 9400

• Supports sensors up to 320 MP.

• 8K video recording, advanced HDR modes.

• Long 4K recording with stable performance (within the limits of the phone’s cooling system).

• Active use of AI algorithms - night mode, super zoom, detail enhancement, smart noise reduction.

Dimensity 8300

• Supports large sensors and a high quality ISP at the upper mid-range level.

• Main focus is 4K video with good HDR.

• Oriented toward high quality photos and videos for everyday use and social networks.

Camera conclusion

• Dimensity 9400 offers more potential for flagship camera systems and 8K video.

• Dimensity 8300 provides a high level of quality that is enough for most users, but without the maximum flagship headroom.

Artificial intelligence

Dimensity 9400

• More powerful new generation NPU.

• Acceleration of generative models, large language models, and complex on-device photo and video processing.

• Local operation of voice and visual assistants, fast AI filters, enhanced effects in camera and gallery apps.

Dimensity 8300

• A capable but less powerful NPU.

• Offline translation, voice assistants, photo enhancement, filters, basic generative AI features.

AI conclusion

• Dimensity 9400 is better suited for smartphones that highlight "smart" features, generative AI and advanced processing scenarios.

• Dimensity 8300 covers the typical AI tasks that a regular user needs.

Memory and storage

Both chips:

• Support LPDDR5X RAM.

• Work with UFS 4.0 storage.

Dimensity 9400 devices usually get higher memory frequencies and larger RAM capacities. This helps to:

• speed up loading of heavy games and apps,

• keep more apps in memory,

• work more comfortably with AI features and heavy multimedia.

Dimensity 8300 also supports fast RAM and UFS 4.0, but phone configurations are often more modest - for example 8-12 GB of RAM instead of flagship 16-24 GB.

Connectivity

5G and mobile network

• Dimensity 9400 has a faster 5G modem with higher peak speeds and wider band aggregation.

• Dimensity 8300 also supports 5G but with slightly lower theoretical speeds.

In real life the difference usually depends more on the carrier and coverage, so both chips provide fast mobile internet in everyday use.

Wi-Fi and Bluetooth

• Dimensity 9400 - Wi-Fi up to Wi-Fi 7 support, modern Bluetooth versions.

• Dimensity 8300 - typically Wi-Fi 6/6E and Bluetooth 5.x, which is enough for most routers and accessories.

Benchmarks and real-world performance

In synthetic benchmarks:

• Dimensity 9400 scores roughly 1.5-2 times higher than Dimensity 8300.

• The gap is especially noticeable in GPU and multi-core CPU tests.

In everyday use:

• Both chips provide a fast interface and smooth app performance.

• The difference is much more visible in heavy games, long video recording, rendering and AI workloads - here Dimensity 9400 has a clearly noticeable advantage.

Which chip to choose

When it makes sense to choose Dimensity 9400

• You want a flagship smartphone with maximum performance.

• Stable high FPS in heavy games and support for a high refresh rate display are important.

• You care about advanced AI features and maximum camera/video potential, including 8K.

• You are ready to pay for a high-end device.

When Dimensity 8300 is enough

• You want a very fast smartphone at a more affordable price.

• Main use cases are social networks, browser, messengers, multimedia and gaming at high settings in Full HD.

• Good battery life and moderate heat are more important than benchmark records.

Final conclusion

MediaTek Dimensity 9400 is a flagship chip with maximum performance, graphics power, AI capabilities and camera potential.
MediaTek Dimensity 8300 is a powerful and more affordable option that delivers almost flagship-like everyday experience and gaming, but in significantly cheaper devices compared to phones based on Dimensity 9400.

Simple choice logic:

• if you need the highest possible performance and technology headroom - Dimensity 9400.

• if you need a fast smartphone with a good balance of price and capabilities - Dimensity 8300.