Are there any specific benchmarks that highlight the memory bandwidth differences between the MacBook Pro M4 and the RTX 4070

The MacBook Pro M4, particularly the M4 Max model, features a memory bandwidth of up to 546 GB/s, which is a significant increase from its predecessor, the M3 Max, which had 400 GB/s[1][4]. This improvement is crucial for tasks that rely heavily on memory access, such as video editing and graphics rendering. The M4 Max chip includes a 16-core CPU and a 40-core GPU, making it highly efficient for tasks that utilize both CPU and GPU resources, thanks to Apple's unified memory architecture[1][4].

On the other hand, the NVIDIA GeForce RTX 4070 has a memory bandwidth that varies depending on the specific model. For instance, the RTX 4070 Ti Super has a memory bandwidth of 672 GB/s, which is higher than the standard RTX 4070 models that typically offer around 504 GB/s[2]. The RTX 4070 series is designed for discrete GPU performance, focusing on gaming and compute-intensive tasks. Its memory bandwidth is optimized for these tasks, providing a dedicated memory pool that is not shared with the CPU.

**Benchmarks that highlight memory bandwidth differences are not explicitly detailed in the available information. However, tasks that rely heavily on memory bandwidth, such as video editing and 3D rendering, would likely show the MacBook Pro M4 Max performing well due to its unified memory architecture and high memory bandwidth. In contrast, the RTX 4070 would excel in tasks that benefit from dedicated GPU memory, such as gaming and GPU-accelerated computations.

In terms of specific performance metrics, the MacBook Pro M4 Max has been noted to nearly tie with an NVIDIA RTX 4090 in certain benchmarks, indicating strong GPU performance[6]. Meanwhile, the RTX 4070 Ti Super offers a performance uplift over the standard RTX 4070 Ti, particularly at higher resolutions like 4K[2].

Overall, while direct benchmarks comparing the memory bandwidth of these two systems are not provided, the architectural differences suggest that each excels in different areas: the MacBook Pro M4 in unified memory tasks and the RTX 4070 in dedicated GPU tasks.