Posted on September 03, 2012 at 15:42ST states 36 DMIPS at 48MHz
Source is the marketing presentation, as found on ST's web site.
Your performance depends on the core frequency, and will hardly ever reach this number.
View it as the upper ceiling.
If you seriously consider an M0 controller, evaluate one carefully for your application.
M0 controllers generally miss the integer division instructions, which could be critical.
