According to what we heard from AMD and LiquidSky during the "Capsaicin and Cream" event at the GDC 2017 show and the press release that came shortly after, LiquidSky aims to use the AMD Vega GPUs in order to effectively share the resources of one GPU with multiple virtual machines by using AMD's Radeon Virtual Encode, which is a unique feature of the Vega GPU.
“LiquidSky’s game streaming service delivers the very best visuals, detail, and pure performance, regardless of the device you’re using,” said Ian McLoughlin, LiquidSky’s co-founder and CEO. “AMD’s Vega-based GPUs will have the perfect blend of bleeding-edge hardware virtualization features and tremendous rendering horsepower. This means consistent framerates and quality of service that’s simply not possible with existing technologies.”
Currently, LiquidSky service is currently in beta stage, has 1.4 million users, 13 data centers and aims to expand its user base once it gets those Vega GPU servers online. Currently, it offers a free basic plan that is filled with advertisements and includes a US $4.99 "pay as you go" and US $9.99 monthly plans.
Unfortunately, there is no word on when those Vega GPU servers will come online but the service will be updated on March 7th, so it is possible that they are getting the Vega GPU earlier as it appears that consumer cards based on Vega GPU won't officially launch sometime late May/early June.