Developer Ready At Dawn will be bringing their God of War PlayStation Portable games into the PlayStation 3. Both God of War: Chains of Olympus and Ghost of Sparta will be released as God of War: Origins Collection.
The PS3 version will have both games to be remastered in full HD quality, from the 480×272 resolution at 30 fps in the PSP version, they will now be able to improve the graphics to a whopping 1920×1080 at 60 fps.
You can check the comparison from this video:
Source: PlayStation Blog