According to the first chart, the 1.15 is worth 1,050 points. 1.29 is worth 640, 3.29 is worth 128, and let's say that the 5th rounder is 5.01, just for argument's sake, and is worth 43 points.

Denver got 1,050 points. Atlanta got 640+128+43 = 811 points. Pick 1.21 is worth 800 points.

The difference between the two is 239 points, or an early 3rd round pick (3.06, say), which is a huge amount of extra value for the team that's trading up to walk away with!

Atlanta really dropped the ball here, giving up way too much to Denver.