Affiliate programs are often compared by looking at the EPC - earnings per click.
However, if you want to compare affiliate programs commissions with AdSense earnings, a more precise way is to calculate the payout you receive per 1,000 page views (CPM).
Here's how to calculate your CPM:
Let's say you earn $180 in affiliate commissions from 30 thousand (30,000) page views. $180 divided by 30 = $6. You have a CPM of $6. Not very inspiring, but not uncommon.
The AdSense stats display the effective CPM you earn.