Connecting PC (with GTX 690) to 4K TV? Mini DisplayPort to HDMI?

BENBOBBY · 8 Jul 2015 at 16:58

Hi,

I recently bought a new 4K Samsung UE40JU6400 TV which has 4x HDMI 2.0 inputs.

I would like to connect my PC to it which has a Geforce GTX 690 card inside with 3x DVI plus 1x Mini DisplayPort outputs.

Is there any way to play games at 4K at 60Hz using this set up (ignoring performance considerations)? I assume I need a Mini DisplayPort to HDMI adapter but the only ones I can find seem to be capped at 30Hz (or dont quote anything at all).

Presumably if there was a Mini DisplayPort 1.2 to HDMI 2.0 adapter, then since both formats support 4K@60Hz in theory this would work fine. Sadly however Im not sure if such a thing exists yet??

Thanks :cool:

peahead · 8 Jul 2015 at 18:33

Hi

There are no current adapters that support 4k @ 60hz at the moment they are all limited to 30hz only. However DP to HDMI 2.0 adapters are currently in development and should be released sometime this year

BENBOBBY · 9 Jul 2015 at 11:19

Ok thanks for letting me know. Its a shame but least it saves me searching around for ages!

andybird123 · 9 Jul 2015 at 12:31

Nvidia support 4K at 60hz using 4:2:0 subsampling without an active adapter

peahead · 9 Jul 2015 at 20:14

andybird123 said:
Nvidia support 4K at 60hz using 4:2:0 subsampling without an active adapter

Yes this is true Nvidia did add support for 4k @60hz using 4.2.0 but via HDMI 1.4..The 690 does not have a HDMI output.

Maybe its possible via Mini display port but i doubt it.

http://www.anandtech.com/show/8191/nvidia-kepler-cards-get-hdmi-4k60hz-support-kind-of