Restriction enzymes and the Cas 9 protein involved in CRISPR…

Restriction enzymes and the Cas 9 protein involved in CRISPR / Cas 9 have many similarities. Compare and contrast the two proteins. Make sure to mention at least one similarity and one difference in your answer and be reasonably specific (Note: your similarity cannot just be that they are both enzymes/proteins, since that is mentioned in the question).