It's a Thinkpad, a professional Laptop. IBM use to own the brand.
The whole lineup is great for what I normally use it for, business. Thinkpads don't normally game. I ordered the 14 inch quad-core model because I hook it up to dual 1440p monitors at home with a docking station, it makes life easier to have one machine for school and home. They do make a Thinkpad workstation if you want a better GPU. P51 offers Xenon E3-1535m and a Quadro M2200, if you need the horses (but who wants to lug around a 15.6 inch brick).
What was disappointing though was they failed to include Thunderbolt 3 on their "performance" model, not enough PCIe Lanes. But, for my use, the mechanical docking port gives me everything I need, except for one thing, an eGPU. And that's a "want" if I'm being honest with myself.