Thu Aug 02, 2018 2:51 am
The eGPU in my tests performed exactly as well as the identical one inside my iMac, so there is no bottleneck with TB-3. It would not be a great idea, though, to loop a 4K movie on the screen attached to it's HMDI while rendering. Or to have fast drives attached to all USB ports and the second USB-C and be using all of them at the same time.
Much faster GPUs might experience some bottlenecks, but that applies to all the eGFX boxes out there. I second the notion that Apple has no real 'pro' machine at this time and that you can build a much faster PC for less. Who could deny that?
But if you want to work with MacOS, IMHO the eGPU is a viable solution. Both the combination of an iMac (non Pro) with it's excellent screen and the same Radeon Pro 580 inside it, or to be on the road or on location with a MBP 13". There's a reason why the eGPU is sturdy and it's definitely lighter than a desktop machine.
OTOH, it wouldn't make much sense to attach any eGFX to a desktop PC, it's true you'll be better off with 2-3 internal cards.
Now that the cat #19 is out of the bag, test it as much as you can and use the subforum.
Studio 18.6.6, MacOS 13.6.6, 2017 iMac, 32 GB, Radeon Pro 580
MacBook M1 Pro, 16 GPU cores, 32 GB RAM and iPhone 15 Pro
Speed Editor, UltraStudio Monitor 3G