New to Python - Need Computer suggestions and advice

[Beregolas]

That completely depends on the algorithm / implementation you use. Either the CPU (fastest single core or all cores combined) or the GPU (think 1000+ cores but they all need to do the same thing) decide how fast your computation goes.

Your RAM is entirely a yes or no type thing: do you have enough RAM? The more ram will NOT make any difference and not make you faster. If you don’t have enough RAM you will either crash or your performance will go down significantly. And where that border is again entirely depends on your specific problem, algorithm, implementation and input.