Getting my first Acer, need help

I am wanting an Acer laptop and want to do a few things

Stream my ISO HD files and watch on the tc with HDMI

Play games. Nothing huge just basic games previous to 2015

Kind of confused reading about INtel HD 620 graphics, and MX940m and mx so here are a few I was looking at, what is the difference?

This first one if the one I REALLY WANT but worried about the HD 620 integrated graphics

https://www.amazon.com/gp/product/B01K1IO3QW/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

here are the others I like as well, more money, not sure it is worth it

https://www.amazon.com/Acer-E5-575G-57D4-15-6-Inches-Notebook-i5-7200U/dp/B01LD4MGY4/ref=sr_1_2?s=pc&ie=UTF8&qid=1494350393&sr=1-2&keywords=acer+aspire+E&refinements=p_n_graphics_type_browse-bin%3A14292273011

https://www.amazon.com/Acer-Laptop-E5-575G-52RJ-GeForce-Windows/dp/B01IHAHGI8/ref=sr_1_4?s=pc&ie=UTF8&qid=1494352856&sr=1-4&keywords=940mx

https://www.amazon.com/Acer-Flagship-Bluetooth-802-11AC-Webcam-Windows/dp/B01DOA6GAK/ref=sr_1_1?s=pc&ie=UTF8&qid=1494343873&sr=1-1&keywords=geforce+940