What is a good score on the redesigned SAT with essay?

I earned a total score of 1,310 with a 610 on evidence-based reading and writing and 700 on math. I got a 6 on essay-reading, 6 on essay- analysis, and a 7 on essay- writing.

I got 1450(650 RW, 800 M), that only converts to a 2080 on the old one, and I want to go to Duke, so I am really trying to get to around 1540. I think a 1500 is good for top 20 colleges, 1400 for 20th - 60th, 1300 for 60th -90th, etc.(U.S. News ranking) Not many colleges will look your essay, so I think it’s not that important.