I'm trying to find a new desktop PC for my son that will run some of the steam games that his old rubbish one is not able to. He wants a GTX graphics card to enable him to use his Nvidia shield with his TV? Am I better buying a normal PC and putting a decent graphics card in it? Prepared to pay up to £800 for the lot but would be happier with 600. If anyone can point me in the right direction as to good places to look or get advice I'd be very grateful.
We don't need windows or a monitor.