START HERE - Pick the Right Kodi Box (updated Dec 2020)
Go into Nvidia Control Panel/Configure Surround/PhysX/PhysX Settings and here you can toggle between your CPU and GPU.
Here you will find or tell which is going to be the workhorse.

I was interested if you can play that file using any player (preferably Kodi) with your GTX 970 set as the workhorse.
I wasn't able to with my ancient CPU so I upgraded to a GTX 960 GPU and all is well.

The point is, had I upgraded to a 970, 980, etc. because they don't hardware decode, I don't think they would have worked for me.
Curious if your 970 does or doesn't (without the help of your strong CPU).
On paper many things are supposed to work. The real world is often a different story.

Trying to confirm if a 960 is better for HTPC use than 970, 980, etc. No idea about the 10XX models? Maybe someone else will chime in using the same method and file.
HOW TO - Kodi 2D - 3D - UHD (4k) HDR Guide Internal & External Players iso menus
W10/20H2 MPC-BE\HC madVR PDVD19 DVDFab3,5&6 KODI 20 PotPlayer 960-4GB/RGB 4:4:4/Desktop=60Hz/Video=Matched Refresh rates 8/12bit/Samsung 82" Q90R

Messages In This Thread
The right box for me - by tyem - 2016-01-13, 15:29
Jesus Box - by kellyvb - 2016-03-04, 20:18
Thanks for the Help! - by jmc15john - 2016-11-09, 16:44
RE: START HERE - Pick the Right Kodi Box (updated Nov 2016) - by brazen1 - 2016-12-12, 01:21
Jarvis crashes and wipes - by gotthis2000 - 2017-01-10, 22:14
RE: Jarvis crashes and wipes - by nickr - 2017-01-10, 22:58
T95Z Plus Android TV Box - by gooner1971 - 2017-03-17, 13:04