Possible fix to some performance issues. Fullscreen weirdness
I am running Most Wanted in Windows 8 Pro 64-bit on the following hardware:
Phenom II 955 BE (quad core 3.2 ghz)
Radeon HD 5770 1 GB
12 GB DDR 1333
Dual monitors
I get pretty good results playing the game with shadows on medium and ambient occlusion turned off, everything else is the default setting for my card.
I have noticed that the game stutters a bit when I start it, but if I alt-tab to a different window pushing the game into windowed mode and then alt-enter to make it fullscreen again the game performs NEARLY flawlessly
....with one exception:
the cutscenes for the most wanted races have a really low framerate that makes them hard to watch. the cutscenes for other races are just fine. I can't tell if these cutscenes are pre-rendered videos or if they are rendered in real time. Maybe just because they tend to be very different than the other cutscenes they are more demanding performance wise. No idea.