Cool stuff. Having more cuda cores does help
Cycles hair rendering runs circles around Lightwave hair when it comes to rendering.
But..had I invested in octane for lightwave I am sure it would be similar, but there you go when comparing GPU vs CPU, on medium machines that are pre-built.
And the fluid simulation with TFD, much faster, up to a certain amount of voxel data that is.
There are of course those who can choose to invest and build their own systems with focus on much more powerful CPU´s and thus reducing the difference in speed that way.