LT 2014 and graphics card compatibility

I am reviewing the Asus G750 JH and Dell M6800 series workstations (laptop) for LT version 2014.  I have read in many places about graphics card incompatibilities.  On the surface the two computer listed above have more than enough power to run LT and sketchUp etc but I cannot seem to find a current computer manufacturer who uses the approved list of video cards.  I'm into drawing, not computers per se and until recently, an Nvidia or AMD fro example gave me enough information to use while selcting a computer.

So who manufactures a computer with the approved graphics cards?  I search prformed many searches here and in the web and the search results are too specific...they focus on the graphics cards only, including no information about which manufacturer using their product.

Michael

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