Which, last I saw a comparison, was the worst of the three. All three are also only as good as the support in software. Both Edius and Premier have support for Quicksync, and at least according to HardwareCanucks, it's about twice as fast
. iirc, Premier also has or had support for cuda as well, but the last numbers I saw on that weren't anything to write home about. Edius uses the QS hardware for decode acceleration as well, and that makes it a lot easier to have a real-time 4k60p timeline during editing, which my 2950 struggles with (after a few edits). In my opinion, that's more valuable than encode acceleration, because I'm happy to let my 4k encodes run overnight.... Even better would be if Neat could be hardware accelerated -- denoising is currently an absolute hog.
All three hardware solutions suffer from being restricted to 4:2:0 video, and so I've frequently dropped the idea of "someone" leap-frogging this stuff and, say, replacing a few of those chiplets with some dedicated hardware for 8k-sized, 4:2:2 and 4:4:4 hardware decode/encode. I think I was also pretty careful to mention that they need to engage software vendors, otherwise the hardware is going to wind up being pointless. I've also spent some time in the Edius forums asking for them to get nvenc working (nvenc has actually seen updates, I haven't heard hide nor hair of VCE :shrug: -- I think AMD has other struggles with their gpus).
Thus far, only Intel has gotten traction. :sigh: