Sources: Wired , 
quote: A modern GeForce 760 has 192GB/S and is under $250. This card is way faster compared to what the ps4 packs.
quote: A 3 year old mid range computer (essentially any i5 cpu) with 4gb ram and a 2-3 year old mid end graphics card will cost next to nothing. This setup will trounce the ps4 in graphical quality and fps.