It is all dependant on what the program can handle. But I would like to point out that you can have any resolution you want in SH3. Find and edit your main.cfg as so :
Code:
[VIDEO]
Resolution=1024 x 768
DynamicShadows=No
FullScreen=No
Synchronized=Yes
ParticleDensity=100.000000
TextureResolutionHigh=Yes
Where it is resolution, change to what you want

You may have to change several main.cfg's for this to work correctly.