With the GPD XD you can get a few console/PC titles thats been ported to Android.
such as Bully, GTA 3/Vice City/San Andreas, Star Wars Knights of the old Republic (not sure if it has controller support), Oddworld: Stranger's Wrath,..
Even Half Life 2 and Portal but that requires root and a OpenGLES hack and runs with a few glitches.
But I'm mainly pissed at Nvidia for making all the good titles likes Half Life 2, Portal, Doom 3 BFG, Tomb Raider 2013/Legend/Anniversary, Resident Evil 5, Trine 1+2 Shield exclusive..
But after all.. if you're more into AAA PC titles then I'd recommend the GPD Win, it can even run graphic stunning titles such as Gears of War and Rage like a charm.