What resolution do you like? What kind of games? The iPhone and iPad are becoming the pre-emininent mobile game platform. The iPad Retina 2's screen resolution is 2048 x 1536, beyond most computer screens. The graphic capability is phenomenal. Here is an example of an iPad Retina image from a game. . .
Skyrim at 1920 with a Haswell on Win764, 8 gigs of ram, Asus 7900 series card Damn near photorealism with 4K textures and other mods and 60 FPS rock steady.
Under $2000 with monitor and best of all, no apple tax, cheap replacement parts available anywhere and upgrades at a fraction of the cost.
Yeah that looks like The Witcher 2 or possibly The Witcher 3.
It looks excellent. If that is what hey are capable of then it would be a replacement.
I would say that the most demanding game I play is modified Skyrim where I use extremely high resolution texture replacements instead of the vanilla textures.
Right now my monitor only goes to 1920 1080, but those individual textures are like 6000 x 4000 just estimating.
They are very nice looking and really make the game come to life, but seeing this image tells me that they could likely handle them, and if not now, then very soon no doubt.