Digital Foundry, the section of Eurogamer noted for its detailed analysis about the graphic industry leading videogame titles, published by a few minutes on your YouTube channel a video comparing dedicated to
Grand Theft Auto V, in which we are shown the main technical differences found in the game between versions PS4 (used for the announce trailer) and PS3 Home Rockstar title. Here's the movie: good vision.
MX Video - Grand Theft Auto V