Grand Theft Auto 5 graphics study
An amazingly detailed breakdown of the graphics in Grand Theft Auto 5 written by Adrian Courrèges.
The article is available on Adrian's website. Direct links below.
Part 1 - Dissecting a frame:
Part 2 - Level of detail and reflections:
Part 3 - Post processing:
Adrian also has similar breakdowns of Supreme Commander and Deus Ex: Human Revolution on his website. I haven't read those, but if they are of comparable quality to this then I will of course check them out at one point and I suggest you do so as well.