Connecting a PC to an HDTV at 3840X2160@60HZ (and not @30Hz) shouldn't be such a huge issue by year 2016. But it is...
First of all one has to check his gfx card. What resolution will his card support and through which port?
Most PC gfx cards will support "4K" which is actually 3840x2160 or UHD (ultra HD) and that is the native resolution of most HDTVs.This resolution, however is not available through DVI/HDMI ports but through a different port called display port which comes in two sizes, normal and mini.
Furthermore, some gfx cards support 3840X2160@60Hz and some gfx cards support 3840X2160@30Hz.
My gfx card, nvidia gtx 690, supports through the MINI DP port a resolution of 3840X2160@60Hz.
In contrast, the on-chip INTEL 4000HD supports, through a NORMAL DP port located on the motherboard's backplate, a max resolution of 3840X2160@30Hz. This was not apparent but required some research, as if that kind of info is not really needed by the user, which is wrong nowadays, when more and more people acquire HDTVs
Even if you figure out the above info for your PC you still aren't ready as the cables and adapters you will need in order to connect your PC to your HDTV are in a complete mess. First of all, there isn't a clear cable / adapter division (standard) for 3840X2160@60Hz output. Secondly, the dp -> hdmi cables/adapters are "secretively" divided into active and passive.
Nvidia gtx 690, I learned after purchasing this adapter, requires an "active" adapter or cable.....
This adapter I am reviewing, for instance, doesn't even mention if it is active or passive. Other cables and adapters mention they are "4K ready", "hdmi 2.0 ready" or "3840X2160@30Hz ready" and I have come across one very expensive adapter which claims it is HDMI 2.0 & 3840x2160@60Hz ready.
I bought this adapter.
I connected the supplied by nvidia mini dp male -> normal dp female adapter to change from mini dp to normal dp.
Then, I connected this adapter to the normal dp female end of the mini dp -> normal dp adapter. Two adapters in a row....
Then I connected my hdmi cable ( a "hdmi 2.0 certified" cable, FORSPARK 10 Feet/3 Meters Prime High Speed HDMI CABLE with Ethernet Metal Green Case A to A Type,Support HDMI Ethernet, Audio Return Channel,3D,4K, 1080p FULL HD LCD PLASMA & LED TV's AND ALSO SUPPORTS 3D for XBOX 360 SONY PS3 SKY VIRGIN BOX DVD Blu-ray Nintendo Wii U
) between this adapter and the TV (an LG hdmi 2.0 UHD TV)
The result was that both the nvidia wizard and the TV itself reported a connection of 3840X2160@60Hz.
Having been unable to achieve this result with other combination of adapters & cables, I was amazed that this adapter with so little reported specs did what other adapters couldn't....