Is a 2190 superscore on the SAT worse than a 680 on the SAT II Chemistry?

Which one should I retake? Mind you, I am going for a computer science major…

Chemistry (IMO) Actually, what are your scores on each section for the SAT? if you have close to 800 or 800 on math, and a decent reading score, then it would be chemistry. Only if you had a low math score (<700) or a low reading score (<650) should you retake the SAT.

Depends on the school you’re applying to.

They were
Math: 740
Reading: 740
Writing: 710

I think retake the 690 Chem and perhaps another subject test like Math II if you haven’t already.
Your scores are pretty balances and a 1480 CR+M is very good.