I'm currently using a GTX 960. I've used it extensively for computational loads for ML with Cuda, but the Polaris card would be a nice upgrade in order to test VR in the future.
Polaris (OpenCL) still can't tip the Cuda ecosystem though...
Username: Csharp
https://www.vessel.com/videos/LCoY5zfFf
https://www.vessel.com/videos/JYZEYDYx0
Hope this new platform turns out great for you guys. I would like more video resolutions though.