3 ATP 250, 2 ATP 500 finals, 0 Masters finals, 0 GS finals.
Murray at Raonic's current age:
6 ATP 250, 1 ATP 500, 2 Masters, 1 GS final.
There is still a large difference in career success. It shows how much standards have dropped when it comes to judging young players if Raonic is considered the best hope.
Another way of looking at it:
Masters best at 21: Raonic-QF Murray-W
Slam best at 21: raonic-R4 Murray-F