If I may, there is a difference between the minimum spec that a developer will guarantee to work, and the minimum that WILL work.
As I broke a memory module on my laptop, I've found that it will still run ss06/fs04/msts perfectly well, et it is below the spec stated for each piece of software.
So what is the graphics demand for 08 compared to 06?
***The above is my own findings only. Please don't blame me if it doesn't work for you***
Stu