> Besides the additional cores on the part of the CPUs and GPU, one main performance factor of the M1 that differs from the A14 is the fact that’s it’s running on a 128-bit memory bus rather than the mobile 64-bit bus. Across 8x 16-bit memory channels and at LPDDR4X-4266-class memory, this means the M1 hits a peak of 68.25GB/s memory bandwidth.
The point of the memory bandwidth is so that it never has to swap to disk in the first place.
By swap speed I think he meant that the bottle neck is the time that it takes to move data from the SSD to the RAM, not how fast can the RAM be read from the processor.
https://www.anandtech.com/show/16252/mac-mini-apple-m1-teste...
> Besides the additional cores on the part of the CPUs and GPU, one main performance factor of the M1 that differs from the A14 is the fact that’s it’s running on a 128-bit memory bus rather than the mobile 64-bit bus. Across 8x 16-bit memory channels and at LPDDR4X-4266-class memory, this means the M1 hits a peak of 68.25GB/s memory bandwidth.
The point of the memory bandwidth is so that it never has to swap to disk in the first place.