Suppreskey

looking for a gen 2 usb c 3.1 to displayport that suits my need, my needs are that it would support Nvidia Gpus to run on the freesync monitor i am getting (Dell D2719HGF) and to be able to get 144hz refresh rate at 1080p, i need this for my Zenbook 14 with mx250, i know its kind of weak to get up to 144hz but my need is not only gamin, plus this is the only monitor i found under 200 dollars that that had a vesa mount, good response time and a good panel,if you can know of an ips monitor with better colors and at least 75hz with display port please recommend it to me and also if you know of a dongle usb c gen 2 3.1 to displayport that can go along with the monitor please do recommend

I want a new Thinkpad p1 and i am not going to wait for the next gen because it will be much more expensive, so i have got my eyes on 2 of them on amazon, (https://www.amazon.com/gp/product/B07NS29DY9/ref=ox_sc_act_title_2?smid=A15IN9UB8ZKBOY&psc=1 1949.99$ , https://www.amazon.com/gp/product/B07HF2TJLG/ref=ox_sc_saved_title_1?smid=A1PYB0QXU6SOEO&psc=1 1654.67). I want to get the one for 1950, because it is 4k, but my problem is it doesn't have any ratings, the name i, the name doesn't say anything about it except that it is a Lenovo Thinkpad P1, there is no questions where answered about and i don't know which graphics card it has it just says Nvidia, but on the other side for there is the one for 1655 it has a 1080 screen and 256gb m.2 ssd those are the differences between them, so which one should i buy, i am scared to buy the more expensive one and end up with the p1000 instead of the p2000 or even worst a non 4k screen i know it says it's 4k but seeing that this one is pretty vague in description of specs it raises suspicion for me.