Soldato
No probs and amazing that ShadowPlay is far more versatile than even the expensive capture cards out there. I didn't see any of them offer 1440P 60 fps, let alone 4K 60 fps
Not sure on the encoding side, but the decoders have HEVC and VP9 support on GM200 so maybe the encoders were given some 4k love?
I think the VCE in Fiji did.
Might need to try something other than shadowplay to test, OBS should work.