I did a similar thing comparing the noise from a Canon 700D DSLR vs a ZWO ASI224MC for planetary imaging. Details here...
https://www.cloudynights.com/topic/6...ct-test-three/
The DSLR seems to have noise reduction built into the output frames, so require less frames to reduce the noise. It also runs a lot slower at 20fps, so needing less frames is advantageous.
Andrew