I had one of these working for a while, but the thunderbolt drivers were spotty and we were constantly worried it would be all over after some update. The Thunderbolt drivers weren't even available until after boot so we had to unplug it and use onboard graphics and disable them again through the device manager after boot.
Thunderbolt is so much nicer than USB, I mean the specs sort of talk for themselves but it’s also far more flexible - you can basically think of it like an extension of the internals of your machine - rather than an external interface.
They are not equal, I don’t think USB4 even has DMA does it?
USB4 devices can have a minimum of 20Gbps link speeds. In comparison, all Thunderbolt 4 devices have a 32Gpbs minimum requirement.
USB4 has a 7.5W minimum power delivery whereas Thunderbolt 4 doubles it with a minimum delivery of 15W.
With Thunderbolt 4, you’ll always get a minimum of 32Gbps and 15W.
Thunderbolt 4 cables support 40Gbps speeds over 2 meters. In contrast, UBS4 can only support 40Gbps within one meter and reduces to 20Gbps on cables that are 2 meters or longer.