/3/ - 3DCG

>>952756
It's not about voxels, or even pixols. Pixols are just pixels with an extra two channels of information (so Zdepth and Material in addition to RGB color data). These extra channels have nothing to do with speed, and if you ever use other programs like Photoshop or Substance Painter then you'll probably understand the concept of being able to paint information into more than just three color channels.

Zbrush is faster because it is not a 3d environment like other 3d software. You don't have a camera with coordinates to move through a 3d environment in order to provide a view of a model (or several models) that has its own set of coordinates. You don't have lights physically placed around that model with their own set of coordinates, with the computer then having to do complex math to determine the different vectors between the angle of the camera, the direction of a surface based on the blending of several vertices, the location of the lights, etc.