Which is to say that the biggest perfomances differences come from:
Faster local storage
Faster networking locally and to the internet
More physical cores on the CPU
More total memory
That list is very dependent on application. Currently using a 24 core 3960X with 128GB RAM for work (3D modelling) and it's about half as fast as my i9/32GB. Even a new i5 would be significantly quicker. Network and storage speeds also irrelevant in this case, even loading and saving is CPU-bound.
Yeah, I am noticing that now, I am converting thousands of images in Lightroom and thought I move them onto the local SSD instead of the network drive, doesn't make a bit of a difference.
That list is very dependent on application. Currently using a 24 core 3960X with 128GB RAM for work (3D modelling) and it's about half as fast as my i9/32GB. Even a new i5 would be significantly quicker. Network and storage speeds also irrelevant in this case, even loading and saving is CPU-bound.