The smartphone chipset market has become more competitive than ever, and two processors that have attracted significant attention are the Snapdragon 8 Gen 3 and the Dimensity 8400. While Qualcomm’s Snapdragon 8 Gen 3 targets flagship devices, MediaTek’s Dimensity 8400 brings premium-level performance to upper mid-range smartphones.
Both chips are built on TSMC’s efficient 4nm process and focus heavily on gaming, artificial intelligence, and power efficiency. However, there are several important differences in CPU architecture, graphics performance, camera capabilities, and connectivity features.
In this comparison, we take a closer look at how these two processors differ and which one offers better value depending on your needs.
Snapdragon 8 Gen 3 vs Dimensity 8400 Key Difference
| Feature | Snapdragon 8 Gen 3 | Dimensity 8400 |
|---|---|---|
| Announced | October 2023 | December 2024 |
| Process Node | 4nm (TSMC) | 4nm (TSMC) |
| CPU | 1× Cortex-X4 @ 3.3GHz, 5× Cortex-A720, 2× Cortex-A520 | 1× Cortex-A725 @ 3.25GHz, 7× Cortex-A725 |
| GPU | Adreno 750 | Mali-G720 MC7 |
| Ray Tracing | Yes | Yes |
| Gaming Features | Snapdragon Elite Gaming | HyperEngine Adaptive Gaming 3.0 |
| NPU | Qualcomm Hexagon NPU | MediaTek NPU 880 |
| RAM Support | LPDDR5X up to 4.8GHz | LPDDR5X up to 4.2GHz |
| Storage | UFS 4.0 | UFS 4.0 + MCQ |
| Camera Support | Up to 200MP | Up to 320MP |
| Video Recording | 8K 30fps, 4K 120fps | 4K 60fps |
| 5G Download Speed | Up to 10Gbps | Up to 5.17Gbps |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 6E |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.4 |
Snapdragon 8 Gen 3 vs Dimensity 8400
CPU Performance
The Snapdragon 8 Gen 3 features Qualcomm’s flagship CPU arrangement with a powerful Cortex-X4 prime core combined with multiple Cortex-A720 performance cores and Cortex-A520 efficiency cores. This design allows it to handle demanding applications, multitasking, and intensive workloads very effectively.
The Dimensity 8400 adopts an all-big-core approach using Cortex-A725 cores. This design improves sustained performance and offers impressive efficiency, especially during gaming and multitasking sessions.
For heavy users who frequently edit videos, run demanding applications, or play graphics-intensive games, the Snapdragon 8 Gen 3 generally delivers stronger overall CPU performance.
GPU and Gaming Experience
Gaming is one of the biggest differences between these two chipsets.
The Adreno 750 GPU inside the Snapdragon 8 Gen 3 offers flagship-level graphics performance. It supports advanced ray tracing technologies and benefits from Qualcomm’s Snapdragon Elite Gaming features, which improve frame rates, visual quality, and responsiveness.
Meanwhile, the Mali-G720 MC7 GPU found in the Dimensity 8400 also supports hardware ray tracing and MediaTek’s HyperEngine Adaptive Gaming Technology 3.0. It provides a smooth gaming experience and efficient thermal management.
For competitive gamers and users who play demanding titles at high graphics settings, Snapdragon 8 Gen 3 maintains an advantage.
AI Performance
Artificial intelligence has become an essential part of modern smartphones.
Qualcomm equips the Snapdragon 8 Gen 3 with its advanced Hexagon NPU, enabling faster AI processing for camera enhancements, voice assistants, generative AI features, and real-time translations.
The Dimensity 8400 includes the MediaTek NPU 880, which also delivers strong AI capabilities and supports various on-device AI functions.
Both processors are capable AI performers, but Qualcomm currently offers a more mature AI ecosystem and broader software optimization.
Camera Capabilities
Camera support is another area where the two chipsets differ.
The Snapdragon 8 Gen 3 uses the 18-bit Qualcomm Spectra AI ISP, supporting:
- Up to 200MP single cameras
- Triple 36MP cameras with zero shutter lag
- Real-time semantic segmentation
- 8K video recording at 30fps
- 4K video recording at 120fps
The Dimensity 8400 features the MediaTek Imagiq 1080 ISP, supporting:
- Up to 320MP single cameras
- Triple 32MP cameras
- Semantic segmentation
- 4K video recording at 60fps
While the Dimensity 8400 supports higher camera resolutions, the Snapdragon 8 Gen 3 offers more advanced image processing and superior video recording capabilities.
Memory and Storage
Both chipsets support LPDDR5X memory and UFS 4.0 storage, ensuring fast app loading and smooth multitasking.
However, the Snapdragon 8 Gen 3 supports memory speeds up to 4.8GHz, while the Dimensity 8400 reaches up to 4.2GHz. The Dimensity 8400 also supports MCQ technology for improved storage efficiency.
In real-world use, both deliver excellent performance, although Snapdragon holds a slight advantage in memory bandwidth.
Connectivity Features
Connectivity is another strong area for Qualcomm.
The Snapdragon 8 Gen 3 includes:
- Snapdragon X75 5G modem
- Up to 10Gbps download speed
- Wi-Fi 7 support
- Bluetooth 5.4
The Dimensity 8400 provides:
- MediaTek 5G modem
- Up to 5.17Gbps download speed
- Wi-Fi 6E
- Bluetooth 5.4
Users looking for the latest wireless technologies and faster 5G performance may prefer the Snapdragon chipset.
Benchmark Performance
In benchmark tests, the Snapdragon 8 Gen 3 generally achieves higher CPU and GPU scores due to its flagship-level architecture and stronger graphics processor.
The Dimensity 8400 still delivers excellent results and can handle modern games, multitasking, and demanding applications with ease. It offers impressive performance for its category and focuses heavily on efficiency.
Which Processor Should You Choose?
Choose the Snapdragon 8 Gen 3 if you want:
- Flagship gaming performance
- Better graphics capabilities
- Advanced AI features
- Superior camera processing
- 8K video recording
- Wi-Fi 7 connectivity
- Faster 5G speeds
Choose the Dimensity 8400 if you want:
- Strong everyday performance
- Better power efficiency
- Modern CPU architecture
- Capable gaming performance
- High-resolution camera support
- Good value for money
Final Verdict
The Snapdragon 8 Gen 3 remains the more powerful and feature-rich chipset. It offers superior gaming performance, stronger AI processing, better connectivity options, and more advanced camera capabilities.
The Dimensity 8400, however, delivers impressive performance and efficiency while bringing several premium features at a potentially lower price point. It is an excellent choice for users who want strong performance without paying flagship-level prices.
If performance is your top priority, the Snapdragon 8 Gen 3 is the better choice. If you want balanced performance, efficiency, and value, the Dimensity 8400 stands out as a compelling alternative.
Read More:
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Dimensity 9500 vs Exynos 2600: The Ultimate Flagship Chipset Battle
Note: Product details, pricing, and availability may change over time. While we try to keep information accurate, please verify details from the official website before purchasing. Some content may be assisted by AI tools like ChatGPT, and some articles may contain affiliate links that may earn us a small commission at no extra cost to you. Reviews, opinions, and feature highlights are based on official specifications and publicly available information at the time of writing.
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