That Sager looks nice initially, but the only thing that would keep me at bay is the fact that not only is a 1080p resolution not really needed for a 15.6" display, but that just means that the small gpu is in no way going to make it a "gaming" laptop. I'd prefer a more appropriate resolution and to be able to turn the settings up.
All this aside, the conversation is for a work laptop, he wouldn't notice a difference between the two, so purchase what makes you comfortable, within your budget, and be happy with it! The only reason to even care about dedicated graphics on a work lappy is if you run something like AutoCAD. Which I run off my work lappy with integrated graphics and it still 'suffices'.