A quick note: more RAM will not improve your speed. RAM only causes a bottleneck if you are working with very large files, or performing certain functions. 12GB is safe but 8 is pretty sufficient…where you’ll definitely see improvement is in the superior i7 processor.
But yeah, might as well be a little more future-proof than 8gb.
Also, try to get a laptop with an SSD for the operating system. This is a dramatic improvement to any computer.