What HDMI cable is best for my PC - TV setup?

[FureNoX]

Hi there.

Today, I bought a new 4K smart TV. ( http://www.lg.com/uk/tvs/lg-49SJ810V )

The seller also asked me before, if I needed a HDMI cable that supports 4K. Without checking specs on cable, I just said yes.
It wasn't before I got home that I noticed it was a 1.4HDMI cable he had given me.

Link to the cable: https://www.elkjop.no/product/tv-lyd-og-bilde/kabler-og-adaptere/S2HDM16/sandstrom-hdmi-kabel-sort-2-m
(Forgive me in advance that it's in Norwegian, just scroll down to see specs).

 

The graphic's card I am using is a Nvidia GeForce GTX 780 ( https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780/specifications )

 

So my questions are: 1. Does the cable in fact support 4K, as it's not listed?

2. Could I have gotten a better cable, for even more optimal picture/viewing experience for my new TV, while streaming from my computer? If yes, can you reccomend me another cable that is better suitable for my setup? (2meter long cable is sufficient).

[RGProductions]

If it works, it's fine.

[RGProductions]

1 minute ago, RGProductions said:

If it works, it's fine.

No really, if it can output your desired resolution and refresh rate, then use it. It's a digital signal, meaning there's no benefit in quality to a costly cable.

[sazrocks]

The cable is fine (High speed hdmi cables support 4k@60Hz. There aren't exactly "versions" to cables.), however I'm pretty sure your GPU doesn't have hdmi 2.0 (which is required for 4k@60Hz). Instead you will likely need to use an active DP to HDMI adapter capable of 4k@60Hz. There are a few on amazon.

 

EDIT: actually a high speed cable is not guaranteed to display 4k@60Hz. I just wrote that from experience (I am yet to have a high speed hdmi cable not support 4k@60Hz.). 

 

Give this a read: 

I would suggest getting a DP to hdmi2.0 adapter regardless, and try the cable that you have to see if it is capable to 4k@60Hz.

[RGProductions]

19 minutes ago, sazrocks said:

The cable is fine (High speed hdmi cables support 4k@60Hz. There aren't exactly "versions" to cables.), however I'm pretty sure your GPU doesn't have hdmi 2.0 (which is required for 4k@60Hz). Instead you will likely need to use an active DP to HDMI adapter capable of 4k@60Hz. There are a few on amazon.

 

EDIT: actually a high speed cable is not guaranteed to display 4k@60Hz. I just wrote that from experience (I am yet to have a high speed hdmi cable not support 4k@60Hz.). 

 

Give this a read: 

I would suggest getting a DP to hdmi2.0 adapter regardless, and try the cable that you have to see if it is capable to 4k@60Hz.

My god damn GTX 660 could do 4k60 over HDMI

[sazrocks]

1 minute ago, RGProductions said:

My god damn GTX 660 could do 4k60 over HDMI

1. Why swear?

2. From the 780 product page: https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780/specifications

Quote

1 - 3840x2160 at 30Hz or 4096x2160 at 24Hz supported over HDMI. 4096x2160 (including 3840x2160) at 60Hz supported over Displayport. Support for 4k tiled MST displays requires 326.19 driver or later.

3. From the 660 product page: https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-660/specifications

Quote

3 - 3840x2160 at 30Hz or 4096x2160 at 24Hz supported over HDMI. 4096x2160 (including 3840x2160) at 60Hz supported over Displayport. Support for 4k tiled MST displays requires 326.19 driver or later.

 

[RGProductions]

Just now, sazrocks said:

1. Why swear?

2. From the 780 product page: https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780/specifications

3. From the 660 product page: https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-660/specifications

 

1. Becasue I can. The swearing was not directed at him, but rather my POS GTX 660

2. IDK it worked at one point for me. IDK it was a while ago and I might've used something else, but I distinctly remember 4k60 on my TV. who knows? 

[sazrocks]

Just now, RGProductions said:

1. Becasue I can. The swearing was not directed at him, but rather my POS GTX 660

2. IDK it worked at one point for me. IDK it was a while ago and I might've used something else, but I distinctly remember 4k60 on my TV. who knows? 

Well unless you managed some dark magic I'm unaware of, you did that using DP to hdmi 2.0 adapter.

[Glenwing]

3 minutes ago, RGProductions said:

1. Becasue I can. The swearing was not directed at him, but rather my POS GTX 660

2. IDK it worked at one point for me. IDK it was a while ago and I might've used something else, but I distinctly remember 4k60 on my TV. who knows? 

If it's a TV then it could probably do 4K 60 Hz over HDMI 1.4 by using YC_BC_R 4:2:0 (half the color information removed, so half data rate, so can do double framerate with the same bandwidth). I can do the same with my 780 Ti. Max is 4K 30 Hz with full color though.

[RGProductions]

Just now, Glenwing said:

If it's a TV then it could probably do 4K 60 Hz over HDMI 1.4 by using YCbCr 4:2:0 (half the color information removed, so half data rate, so can do double framerate with the same datarate)

Ding ding ding! it was a 4:2:0 TV for sure! 

[sazrocks]

Just now, Glenwing said:

If it's a TV then it could probably do 4K 60 Hz over HDMI 1.4 by using YCbCr 4:2:0 (half the color information removed, so half data rate, so can do double framerate with the same datarate)

 

1 minute ago, sazrocks said:

some dark magic I'm unaware of

 

[RGProductions]

Just now, Glenwing said:

If it's a TV then it could probably do 4K 60 Hz over HDMI 1.4 by using YC_BC_R 4:2:0 (half the color information removed, so half data rate, so can do double framerate with the same datarate). I can do the same with my 780 Ti. Max is 4K 30 Hz with full color though.

Hows the 780ti BTW? Considering picking one up, as its about the most powerful GPU not affected by mining

[Glenwing]

Just now, RGProductions said:

Hows the 780ti BTW? Considering picking one up, as its about the most powerful GPU not affected by mining

Hot. Does the job though if you don't have high-resolution monitors. I replaced it with a 1080 recently because the 3 GB VRAM was limiting me at 1440p, and the built-in video encoder can only record up to 1080p 60 FPS on the 780 Ti.

[RGProductions]

2 minutes ago, Glenwing said:

Hot. Does the job though if you don't have high-resolution monitors. I replaced it with a 1080 recently because the 3 GB VRAM was limiting me at 1440p, and the built-in video encoder can only record up to 1080p 60 FPS on the 780 Ti.

All I do is play CS on 1080p60 :). But i want to get into PUBg. the VRAm is the issue though. Should've been a 4 gig card.

[sazrocks]

Just now, RGProductions said:

All I do is play CS on 1080p60

V-sync on CS? BLASPHEMY!

[RGProductions]

1 minute ago, sazrocks said:

V-sync on CS? BLASPHEMY!

no V sync. Run it at 140 odd FPS, but my monitor is 60hz

[FureNoX]

So many replies! I have been away and not reading here since I last posted.

But thanks everyone, for trying to help and discuss among yourselves. I love it when people go in depth about things like this.

But update update since I last posted:
1. I returned the HDMI 1.4 cable ( https://www.elkjop.no/product/tv-lyd-og-bilde/kabler-og-adaptere/S2HDM16/sandstrom-hdmi-kabel-sort-2-m )

2. I got a new HDMI 2.0b cable ( http://www.clasohlson.com/no/Exibel-HDMI-kabel/Pr382443000 )

 

So my questions are now the following:

On 8/7/2017 at 8:06 PM, sazrocks said:

I would suggest getting a DP to hdmi2.0 adapter regardless, and try the cable that you have to see if it is capable to 4k@60Hz.

1. Now that I have the HDMI 2.0 is there a way to check if it's running at 4K@60Hz? If yes, then how?
 

 

On 8/7/2017 at 8:29 PM, sazrocks said:

1 - 3840x2160 at 30Hz or 4096x2160 at 24Hz supported over HDMI. 4096x2160 (including 3840x2160) at 60Hz supported over Displayport. Support for 4k tiled MST displays requires 326.19 driver or later.

2. If it's not running at 4K@60Hz, do I then need to get a DP to hdmi2.0 adapter, and use it from the DP on my graphics card, then into the ordinary 2.0 HDMI on the TV to get 4K@60Hz?

 

3. But if I go to the guide. Hit Display port to HDMI and hit the '' Show DisplayPort to HDMI Adapter Limits '' - 4K@60Hz under Type 3 (?)*
(600 MHz) doesn't even exist yet? So how can I use a DP on my new HDMI 2.0 cable to get 4K@60Hz?

 

Sorry for bringing this post up again! But I hope you guys can help me out further!
Thanks in advance!  

 

[Glenwing]

41 minutes ago, FureNoX said:

 

3. But if I go to the guide. Hit Display port to HDMI and hit the '' Show DisplayPort to HDMI Adapter Limits '' - 4K@60Hz under Type 3 (?)*
(600 MHz) doesn't even exist yet? So how can I use a DP on my new HDMI 2.0 cable to get 4K@60Hz?

 

Sorry for bringing this post up again! But I hope you guys can help me out further!
Thanks in advance!  

 

Passive adapters to HDMI 2.0 do not exist yet, but you can use active adapters which are listed further down on that page. I'll clarify that section in my next revision.

[sazrocks]

37 minutes ago, FureNoX said:

So many replies! I have been away and not reading here since I last posted.

But thanks everyone, for trying to help and discuss among yourselves. I love it when people go in depth about things like this.

But update update since I last posted:
1. I returned the HDMI 1.4 cable ( https://www.elkjop.no/product/tv-lyd-og-bilde/kabler-og-adaptere/S2HDM16/sandstrom-hdmi-kabel-sort-2-m )

2. I got a new HDMI 2.0b cable ( http://www.clasohlson.com/no/Exibel-HDMI-kabel/Pr382443000 )

 

So my questions are now the following:

1. Now that I have the HDMI 2.0 is there a way to check if it's running at 4K@60Hz? If yes, then how?
 

 

2. If it's not running at 4K@60Hz, do I then need to get a DP to hdmi2.0 adapter, and use it from the DP on my graphics card, then into the ordinary 2.0 HDMI on the TV to get 4K@60Hz?

 

3. But if I go to the guide. Hit Display port to HDMI and hit the '' Show DisplayPort to HDMI Adapter Limits '' - 4K@60Hz under Type 3 (?)*
(600 MHz) doesn't even exist yet? So how can I use a DP on my new HDMI 2.0 cable to get 4K@60Hz?

 

Sorry for bringing this post up again! But I hope you guys can help me out further!
Thanks in advance!  

 

1. Yes. Check the resolution panel in nvidia control panel

2. Yes, yes, and yes. You need to make sure you get an active adapter that supports 4k@60hz.

3. I can’t find the section you are talking about. But I’m pretty sure what you are seeing is only relevant to passive adapters. I have personally used DP to hdmi 2.0 active adapters at 4K 60hz on many occasions.

 

edit: ninja’d, kinda.

[FureNoX]

Well guys! It seems as this has finally come to an end!
With the Nvidia Geforce GTX 780 connected with a HDMI 2,0b to the LG49SJ810V TV,  I do in fact *cheering* get 3840x2160 @60Hz! And that without using a DP adapter! 

My last question regarding this would simply be; It says recommended at 3840x2160 but can be used at 4096x2160. Why is that? And what is most optimal to use of the two? (Even if it says 3840x2160 is the recommended one. Pros? Cons? Any differences? What is most optimal?

[sazrocks]

6 minutes ago, FureNoX said:

Well guys! It seems as this has finally come to an end!
With the Nvidia Geforce GTX 780 connected with a HDMI 2,0b to the LG49SJ810V TV,  I do in fact *cheering* get 3840x2160 @60Hz! And that without using a DP adapter! 

My last question regarding this would simply be; It says recommended at 3840x2160 but can be used at 4096x2160. Why is that? And what is most optimal to use of the two? (Even if it says 3840x2160 is the recommended one. Pros? Cons? Any differences? What is most optimal?

3840x2160 is 16:9 and most content is in that format. 4096x2160 is a slightly wider cinema format. I wouldn’t worry about it unless you care about the extra few pixels/want to watch certain movies in their “true” form.

[Glenwing]

10 minutes ago, FureNoX said:

Well guys! It seems as this has finally come to an end!
With the Nvidia Geforce GTX 780 connected with a HDMI 2,0b to the LG49SJ810V TV,  I do in fact *cheering* get 3840x2160 @60Hz! And that without using a DP adapter! 

My last question regarding this would simply be; It says recommended at 3840x2160 but can be used at 4096x2160. Why is that? And what is most optimal to use of the two? (Even if it says 3840x2160 is the recommended one. Pros? Cons? Any differences? What is most optimal?

The physical resolution of the TV is 3840×2160, if you set it to 4096×2160 it will just be scaled to 3840. 4096 is a cinema standard so it accepts video signals at that resolution even though it's slightly larger than the TV.

 

Just for completeness, can you go to the NVIDIA control panel -> Change Resolution, and let us know which option is set under Output Color Format?

[FureNoX]

[Glenwing]

Just now, FureNoX said:

Thanks, things are as I expected

[FureNoX]

2 minutes ago, Glenwing said:

Thanks, things are as I expected

No problem But as you expected? What do you mean? I don't have the most optimal solution? Do i need a DP adapter?