[matombo]

Hi Guys,

I have ONKYO TX-RZ800 Receiver which has a pass through 4K, It is connected to my HTPC via HDMI, in the HTPC I am using NVIDIA 970. Let me know is it possible to upscale HD 1080p to 4K from the HTPC? or it have to be from the Receiver?. Guide me please. Thanks.

[PatK]

It's far better to let the Display upscale with built in hardware scalers, I doubt your AVR has scaling, but just passes the signal. To achieve 4K 60 cycles you would need HDMI 2 support on both ends. Poached out of context from a popular video site "To display a 4k resolution at 60Hz, the video interface (HDMI, DisplayPort) needs to transfer 12 Gbits/second of data:" Netflix is looking at 15Gbits and UHD would be higher, I've heard 25Gbits sec and more.

-HDMI 1.2: up to 4.95 Gbits/sec
-HDMI 1.4: up to 10.2 Gbits/sec
-HDMI 2.0: up to 18.0 Gbits/sec
-DisplayPort 1.2: 17.2 Gbit/sec
-DisplayPort 1.3: 32.4 Gbit/sec

Looks like you should be fine for the hardware, although UHD might be your Waterloo. http://www.geforce.com/hardware/desktop-...ifications