EVGA GTX 760 3Gb @ 4k

[elliott35]

Is it possible to convert the display port on the 760 to an HDMI 2.0 for 4k @ 60hz? I found a 760 for $50 and would like to upgrade my HTPC. I have a 4k tv and receiver , but it only has HDMI. Can it be converted ? I believe the HDMI included on the card is 1.4a

 

Thanks

[themctipers]

i have a 2gb asus 760 with a DP output

it can do 4k 60hz output without lag

 

don't know about doing DP to HDMI, i can try later on in the day using HDMI for 4k

[EposVox]

You would need a specific converter adapter that covers both the DP 1.2 and HDMI 2.0 spec like this one, but should in theory work. DP to HDMI is easy, going from HDMI to DP is where you run into trouble.

[themctipers]

20 minutes ago, themctipers said:

i have a 2gb asus 760 with a DP output

it can do 4k 60hz output without lag

 

don't know about doing DP to HDMI, i can try later on in the day using HDMI for 4k

fuck this shit

 

i plugged my 760 into my PC and blue screens because windows couldnt find windload shit ?????

 

[Frankenburger]

Pretty much any active DP to HDMI 2.0 adapter will allow you to convert DP to 4k/60Hz HDMI. They typically run around $20, so as long as you look for a decently rated one on Amazon that advertises 4k and lists it as an active adapter, you should be good.

 

For example I'm currently using this one https://www.amazon.com/Ableconn-DP-HD20AW-DisplayPort-Active-Adapter/dp/B01EBAINOO on my 55" 4k display. It works fairly well, aside from the fact that the adapter makes the TV wig out, causing it to lose its HDMI connection type (PC), making it default back to DVI every time I turn the TV on. Based on the ratings, I'd recommend grabbing this adapter https://www.amazon.com/Plugable-DisplayPort-Supports-displays-3840x2160/dp/B00S0C7QO8 (which wasn't available when I bought the Ableconn adapter).

[elliott35]

So I just plugged in this card with the HDMI and it says it's 4k @ 60hz. Is that possible? Everything seems to be working at 4k. Even the TV is recognizing the input at 4k. I thought only the DP on this card would do 4k @60 

[Frankenburger]

6 minutes ago, elliott35 said:

So I just plugged in this card with the HDMI and it says it's 4k @ 60hz. Is that possible? Everything seems to be working at 4k. Even the TV is recognizing the input at 4k. I thought only the DP on this card would do 4k @60 

I'm guessing the color profile (under the resolution menu) is either YcBcR 420 or 422? If so, that's why.HDMI 1.4 can do 4k 60Hz with color compression. The colors won't be as accurate as 444 compression (lossless) or RGB (uncompressed), but if color accuracy isn't a concern then it's not a bad way to go.

[elliott35]

You are correct, would I be able to have full color with the adapter?

[Frankenburger]

9 minutes ago, elliott35 said:

You are correct, would I be able to have full color with the adapter?

You should be able to, as long as your TV supports it, yes.

 

If you needed to pull up the specifics of your TV and if it supports RGB or YcBcR 444, I'd suggest checking out http://www.rtings.com/

[elliott35]

5 hours ago, Frankenburger said:

You should be able to, as long as your TV supports it, yes.

 

If you needed to pull up the specifics of your TV and if it supports RGB or YcBcR 444, I'd suggest checking out http://www.rtings.com/

Probably does... I would hope so. Its the Sony 940D. Ill check. I gotta imagine it does as it supports 4kHDR 10. Whats the least compressed that is supported over any port?

 

[Frankenburger]

3 hours ago, elliott35 said:

Probably does... I would hope so. Its the Sony 940D. Ill check. I gotta imagine it does as it supports 4kHDR 10. Whats the least compressed that is supported over any port?

 

Couldn't find the 940D but it does list the 930D with 4k/60Hz @ 444, so it's probably supported.

 

Technically, RGB is the least compressed. However, RGB and YcBcR 444 are both visually identical. Some TVs look/behave better with YcBcR while some others look/behave better with RGB. Then there's some TVs that doesn't care which you use. It couldn't hurt to try either YcBcR 444 vs RGB, but I would stick with YcBcR 444 since that's what most TVs are designed to use out of the gate.

[elliott35]

Thats really helpful. Thank you. 

[Frankenburger]

You're welcome! Good luck with your setup

[elliott35]

Sorry to dig up an old thread but I'm still struggling with this. I got the pluggable adapter for the 760 and it wouldn't do the full resolution @60hz ycbr444. Eventually I just gave up trying to make it work and bought a GTX 1050ti which is supposed to have an HDMI 2.0b (it's my understanding that this spec should work) but this too won't do anything other than ycbr420. Is it a limitation of my receiver ? I have a pioneer elite lx301. It's the only thing I can think of. Any other ideas?

[Frankenburger]

As long as you have a high bandwidth HDMI cable, then yes, the 4:2:0 limitation is either with the receiver or the TV. Can you do full 4:4:4 when plugged into the TV? Most TV's can do audio pass through, so if your TV can do 4:4:4 and it turns out the receiver is kneecapping the color compression, then look into having the TV output to the receiver. That, or connect the receiver separately to your computer's video card or sound and use it only for audio if possible.