Scale Agile Framework vs Disciplined Agile Delivery
Most #agileframeworks build up on #scrum, hence we should read up and understand this first. SAFe® "uses a combination of existing lean and agile principles and combines them into a methodology for large-scale projects". Unlike the other agile frameworks it actually includes team, program and portfolio processes. DAD is more geared to smaller scale projects.
The article below gives you deeper insights into these two frameworks and compares them directly