All this technical discussion reminds me of the numbers war in electronics in the 1980s. If we are to believe any of those specifications the Yamaha receiver is a much better performer than a Lamm.
I began with rim drive over 40 years ago and was talked into a belt drive, assured of it's superiority by the Thorens rep himself.
I owned tens of dozens of belt drives and each sounded different but not until I returned to rim drive / direct drive did I get the immediacy and impact that had been missing all these years.
I clump rim drive and (good) direct drive into the same category as both provide similar sound.
Quiddity, I don't know where you heard a Garrard or other rim drive that had such poor speed results, but in a side by side test against three of the finest belt drive tables on earth the Garrard was top or very near.