The MT410 is labeled 1/10, but it is definitely 1/8 scale in size. And the X-Maxx makes it look like a baby. I do have an X-Maxx that I am building from parts, but it is a long way from finished. But just having the chassis together, it's huge.
I don't have either, but can tell you based on really looking into the MT410, you probably won't find a better truck in that style. Tekno makes some of the best RC's out there. But you are comparing a 1/8 scale truck to a 1/5 scale.