You might also want to consider the Dell Latitude 3540 for $779. It is a business oriented 15.6" laptop with a 1080p screen and a Radeon HD 8850m graphics chip (listed as Radeon Venus Pro). However, it does not have a backlit keyboard so if you want to use it in the dark you would need to buy one of those USB laptop lights.
http/www.dell.com/us/business/p/latitude-3540-laptop/pd
I actually have the Dell Latitude 3540 in my possession since I did a clean install of Win 8 'cause he was having some issues. I'm just waiting for him to return from an extended vacation so I can give it back.
It's a pretty decent laptop, but somewhat basic. As I stated there is no backlit keyboard and there is no mSATA of M.2 port to install a SSD. If you want a SSD, then you need to replace the hard drive. The keyboard feels slightly stiffer compared to my old IBM ThinkPad T40 and my Lenovo Y470 which mean I need to apply just a little more force on the keys when typing. Not as much force as a desktop keyboard though.
The Radeon HD 8850m is rated between a GT 750m and GT 755m. The only game I tested on it is Star Trek Online since it does not write anything to the Windows Registry. I just copied the directory from my desktop to the laptop. I want to keep the registry as clean as possible since it is not my laptop. It plays smoothly enough at full resolution and high graphic settings. However, in large battle there is lag which is at least partially due to the server.