Hello, I am going in to mechanical engineering in the fall, and I was wondering what would be a better laptop choice, the Lenovo Thinkpad P1(Xeon E-2176M vPro 6 core 2.7GHz, Quadro P2000, 32 GB DDR4 2666MHz ECC), or the Lenovo Thinkpad P1(i7-8850H vPro 6 core 2.6GHz, Quadro P2000, 32GB DDR4 2666MHz). Or if I will even need a laptop that powerful, such as the Dell XPS 15 9570(9580??) with a regular consumer graphics card(i7-8750H 6 core, GTX 1050Ti 4GB, 16/32GB DDR4 2666MHz) or the Lenovo Thinkpad X1 Extreme(i7-8750H 6 core 2.2GHz, GTX 1050Ti 4GB, 16/32GB DDR4 2666MHz)?