What are the main differences in GPU performance between the M1 Pro and M4 Pro for video editing

1. GPU Cores and Architecture: The M1 Pro features a 16-core GPU, while the M4 Pro includes a GPU with up to 20 cores. However, the M1 Max, which is often compared in discussions, has 32 GPU cores, significantly more than both the M1 Pro and M4 Pro. The M4 Pro's GPU architecture is more modern and efficient, utilizing a 3 nm process compared to the M1 Pro's 5 nm process, which can lead to better power efficiency and potentially faster performance in some tasks[1][2].

2. Performance in Video Editing: In practical video editing scenarios, such as using Adobe Premiere Pro, the M4 Pro provides a smoother experience with quicker workflows compared to the M1 Pro. This is partly due to improved thermal management and more efficient CPU performance, which complements GPU tasks[2]. However, the M1 Max, with its higher number of GPU cores, might offer advantages in tasks that heavily utilize GPU resources, such as batch processing or complex video effects[3][5].

3. Memory Bandwidth and Efficiency: The M4 Pro supports higher memory bandwidth, which is crucial for video editing tasks that require handling large files and multiple streams. The M4 Pro's more modern architecture also provides better power efficiency, which can be beneficial for long editing sessions[4]. In contrast, the M1 Pro has a higher memory bandwidth compared to some other M1 models but is outpaced by the M4 Pro in this regard[1].

4. AI and Neural Engine Performance: The M4 Pro features a significantly faster Neural Engine, which enhances AI-driven tasks like video analysis and effects. This can be particularly beneficial in applications that leverage AI for tasks such as object detection or content creation[4]. While the M1 Pro's Neural Engine is capable, it is not as advanced as the M4 Pro's.

5. Real-World Performance: In real-world video editing tasks, the M4 Pro generally offers faster performance and smoother operation compared to the M1 Pro. However, the actual speedup may vary depending on the specific tasks and software used. For instance, while the M4 Pro might export videos slightly faster, the difference might not be dramatic in all scenarios[6].

Overall, the M4 Pro offers improved efficiency, faster CPU performance, and enhanced AI capabilities, making it a strong choice for video editing tasks that benefit from these features. However, the M1 Max might still be preferable for tasks that heavily rely on GPU core count, such as complex video processing or batch rendering.