I've not had as much free time as I had back in Cata to work on proofs like this. I'll go over the method for figuring out how much dps hitting the haste breakpoints are worth.

First you take a character profile that is under the haste mark. Then sim that, find the dps and the int scale factor for it.

http://chardev.org/profile/7908-BISNo2.html
DPS: 103,414

Int: 3.91

Then you take a character profile that is above the haste mark, and get the same values.

http://chardev.org/profile/4622-BISNo1.html
DPS: 104,398

Int: 3.95

Take the difference of the dps, and divide by the average of the scale factors:

(104,398-103,414)/((3.91+3.95)/2) = 250.3817 PP

Actually a bit lower than my first prediction... don't kill yourself trying to get it...