I have some serious stuttering while walking around Detroit, or while entering a new area,
I tried some different things, Windows 7 and XP, lower settings and maximum settings, and the stuttering was always there, actually on windows XP it seemed even more noticeable than on 7 with the highest settings (DX11).
I have a modest CPU (wolfdale with 2mb l2 at 3.6GHz with 300MHz FSB), slow ram (3GB DDR2 800 Cas 6 running in flexmode), and a HD5750(750/1250)...
what I can say by looking at the resources monitor is that memory usage is very low, CPU usage is almost always full in one core and medium to low on the other, vram usage is normally around 400-600, GPU usage can go very low at times, the framerate in general is good (above 30-40), but there is the heavy stuttering...
but anyway, I already finished the game.