First of all, this comparison is not entirely fair because obviously a 3 hp and even 3.5 hp blenders are much stronger than 2 hp blenders. The Health Master is advertised as a 2 hp blender and it is not even a 1.75 hp blender.
The more power and torque (AMP) a blender has the better the results of the smoothies and raw ingredient soups could be assumed. In our research we have found that a 2 hp blender does exactly the same job as a 3 hp blender or a 3.5 hp blender. But the 2 hp blender takes a little bid longer.
Then, not only time is an issue with blending raw, but also the torque and noise as well. Because the noise level of a 2 hp blender is just about the same as a 3 hp or 3.5 hp blender, the blending cycle is often cut short to minimize the noisy torture. Ok, it is true, that sound enclosures nowadays in the below $ 80 range can help with noise reduction.