Board Thread:Questions and Answers Forum/@comment-24.172.138.35-20160822215030/@comment-24057866-20160822230432

Yes, that's exactly right.

It used to be more complicated--you would gain roughly 80% of the higher-level item's level difference, so a 310 infused with a 320 would net a 318. They changed that in a recent update, so now you get the full value: a 310 infused with a 320 nets a 320. The infused item's intellect/discipline strength also increase proportionately.