A high powder blender is one that can hard things (like frozen fruit, or nuts) into something smooth with no trouble. When I blend frozen fruit, any tiny seeds, or raw nuts in my Vitamix it comes out perfectly smooth. Therefore I love and will always recommend Vitamix. Here's the one I have, and use it every single day. High-power blenders can do amazing things these days and if you are keen to make healthy food this is one of the first things I recommend investing in!