Hey. so I use a laptop with an 17 (5000series) and too have 16g ram. laptop gpu's seem to be the biggest fallback compared to desktops. Now my video card is slightly better than yours but still very close.
I use a monitor and wireless keyboard and mouse as well. You have to. unless you want to get that weird almost narcotic feeling you get when Cadding for hours on end.
But for your question: My comp runs everything very smoothly. the start up is a little slow but its not a problem. As for the graphics, everything works flawlessly. if your editing large images exploded into individual members...that is the only time you will find your computer hiccup. and that's for 2d.
As for 3d, I have done several large truss dwgs and the images will get choppy if I start rotating around and zooming in and out very quickly. But it doesn't ever slow me down.
My simple answer is yes it will work. especially for LT work.
and make sure your comp doesn't run auto updates or have back round apps taking up ram.
edit: I just noticed you said your were looking at a laptop. I would suggest finding one with an nvidea or amd graphics card. you could also try buying a comp with 8gs of ram and buying nicer 16g ram after market. its maybe 50$ if your on ddr3. great way to buy the comp off the shelf cheaper. the extra 8 gigs of memory already installed upsales the price in stores for way more. just get the best processor you can (i7 6000seies) and find that low end amd radeon or nvidea GeForce that will come stock with your new comp.
Hope that helps. I was in the same situation last year.
Thank you Autodesk community.
kudos for anyone who takes the time to help me out.
