Dynamic range is not determined by the camera style alone. It mainly depends on the recording medium: sensor size/photosite size for digital, and film stock for film SLRs.

In general:

• DSLRs usually have more dynamic range than point-and-shoot cameras because they typically use larger sensors with larger photosites.
• Point-and-shoot cameras usually have less dynamic range because their sensors are much smaller.
• For film SLRs, the camera body itself matters less; the film type largely determines dynamic range.

Examples cited in the community answers:

• Phase One P65: about 13 EV
• Canon 5D: about 11.1 EV
• Canon PowerShot G9: about 10.1 EV

These figures support the general trend that larger sensors tend to deliver higher dynamic range.

Film is often quoted around 7 EV in the provided answers, though that measurement may not be directly comparable to digital sensor tests.

So the short answer is: no, they’re not all the same. Typically, larger-sensor digital cameras have better dynamic range than small-sensor point-and-shoots, while film SLR dynamic range depends mostly on the film you load.