…games started getting a lot better, at least graphically, around 2013. Games from 2012 look like crap now
grade the graphics quality curve on a "for it's time" basis though
Far Cry and Half Life 2 were graphically superb in 2004.
2005 Civ 4's graphics are still fine today, I just finished playing some a month ago.
2007 has the 2 original Crysis games, which I replay every year—the graphics are absolutely fine today.
The 2012-13 thing is likely to be due to hardware advances around that time, it was around then that PCs really could run Crysis without melting.