The GEFORCE GT640 card will work at 4K 30Hz and will self detect and output at 4K when connected to the 4K #5 port of a VIZIO P series TV. Ours is the 70" version.
It should do the same with later vintage 4K TVs.
Using a mechanical BI-DIRECTIONAL SWITCH it is possible to toggle between a conventional HD PC monitor and the 4K Vizio TV. There is a app 3 sec delay when switching, the time needed for the GT 640 card to adjust to the different resolution and frame rate.
The GT 640 card sells for app $ 75.00.
My computer is a i7 920 with 12 GB ram and will play anything including 4K HEVC when using the free GOM player.
The Vizio P series will not play 264 videos via the USB port, so this is a perfect solution.
Watching my 4K videos from the Sony FDR-AX100 with this setup is just stunning!!
Goodbye PROBOX2 EX
Eugene
This message was edited 2 times. Last update was at Jan 10. 2015 16:40
CYBERLINK PLEASE ADD UHD BLU RAY BURNING SOFTWARE
PD14,
Win10,64bit.CPU i7 6700,16GB ,C= 480 GB SSD ,GPU GTX1060 6GB 1 fan. Plus 3 int, 4 ext HDD's for video etc.LG WH16NS40 reads UHD.
4K 24" ViewSonic monitor.Camera Sony FDR-A