We’ve also been looking at the COA and found something about “differential tuition” for engineering students. Here’s a link to the page:
https://engineering.tamu.edu/differentialtuition.html
Here’s a link to the tuition calculator:
http://tuition.tamu.edu/
Edit: This appears in-line with other colleges. I think they all charge a bit more for engineering to help cover lab and equipment costs. I see rosegeo posted the tuition calc first - use it to see the different college costs.