MoPub VS AdMob


Can anyone help me understand what is the benefit of MoPub?
Working with AdMob, I noticed that I have 90%+ fill rate, and the eCPM are very good, therefore I do have good revenue for my app.
On the other hand, I’m exploring new options, and I given that the MoPub SDK is very light, I was considering trying it out.
Thanks for your help!