For example, let's say you have a brand new 5K iMac with a Thunderbolt 3 connection to an eGPU with an AMD RX 580 sitting in your home office. With Apple's new push towards VR and AR development, the GPU hardware is better up to the task of not only gaming on Macs, but streaming those games to other Macs and PCs in your own home. With full fledged GPU power on Mac, you can now also develop and game on those same Macs too. No longer are desktop GPUs the realm of PC enthusiasts and old cheese grater style Mac Pros.
Gamers have a reason to rejoice now that Apple is getting on board with the VR and AR bandwagon via their eGPU development kit.