Trying to run 4k 144hz using 3070ti

[Sunlight91]

RTX 3000 & 4000 only supports 4K 120Hz over HDMI. I have a 4K 144Hz Hisense TV. My 4070 detects only 120Hz at 4k. My laptop with an 780M iGPU goes to 144Hz at 4k on the same cable.


Check the full specs:
2 - Supports 4K 120Hz HDR, 8K 60Hz HDR and Variable Refresh Rate as specified in HDMI 2.1

NVIDIA GeForce RTX 3070 Family

The AI Revolution has Come to Gaming

www.nvidia.com

 

[dylan06]

RTX 3000 & 4000 only supports 4K 120Hz over HDMI. I have a 4K 144Hz Hisense TV. My 4070 detects only 120Hz at 4k. My laptop with an 780M iGPU goes to 144Hz at 4k on the same cable.


Check the full specs:
2 - Supports 4K 120Hz HDR, 8K 60Hz HDR and Variable Refresh Rate as specified in HDMI 2.1

NVIDIA GeForce RTX 3070 Family

The AI Revolution has Come to Gaming

www.nvidia.com

Not sure about that as the guy set it to.4k 144 hz and no problems all stable

 

[Chomiq]

RTX 3000 & 4000 only supports 4K 120Hz over HDMI. I have a 4K 144Hz Hisense TV. My 4070 detects only 120Hz at 4k. My laptop with an 780M iGPU goes to 144Hz at 4k on the same cable.


Check the full specs:
2 - Supports 4K 120Hz HDR, 8K 60Hz HDR and Variable Refresh Rate as specified in HDMI 2.1

NVIDIA GeForce RTX 3070 Family

The AI Revolution has Come to Gaming

www.nvidia.com

Nonsense:

If it has HDMI 2.1 port it has enough bandwidth to support 4K 144 Hz.

Don't use marketing material from 3 years ago, when 4K 144 Hz wasn't even an option for TVs. Back then all that was imported was that it supported HDMI 2.1 for compatibility with (then) nextgen consoles.

 

[Dr. Dro]

RTX 3000 & 4000 only supports 4K 120Hz over HDMI. I have a 4K 144Hz Hisense TV. My 4070 detects only 120Hz at 4k. My laptop with an 780M iGPU goes to 144Hz at 4k on the same cable.

Check the full specs:
2 - Supports 4K 120Hz HDR, 8K 60Hz HDR and Variable Refresh Rate as specified in HDMI 2.1

NVIDIA GeForce RTX 3070 Family

The AI Revolution has Come to Gaming

www.nvidia.com

This is wrong/out of date information, NVIDIA RTX 30 and 40 series GPUs support 4K 144 Hz over HDMI just fine. DisplayPort land is another story. For reference:

NVIDIA RTX 30/40 series support HDMI 2.1 48 Gbps and DisplayPort 1.4 (HBR3), both at full bandwidth
NVIDIA 50 series support HDMI 2.1 48 Gbps and DisplayPort 2.0 (UHBR20), both at full bandwidth
AMD RX 6000 series support HDMI 2.1 at 40 Gbps* and DisplayPort 1.4 (HBR3), only DP at full bandwidth
AMD RX 7000 and 9000 series support HDMI 2.1 at 48 Gbps and DisplayPort 2.0 (limited to UHBR13.5)**, only HDMI at full bandwidth
Intel Arc A-series supports HDMI 2.1 at 48 Gbps and DisplayPort 2.0 (limited to UHBR10)***, certain limitations apply
Intel Arc B-series support HDMI 2.1 at 48 Gbps and DisplayPort 2.0 (limited to UHBR13.5)

* hardware limitation
** AMD has intentionally disabled DisplayPort UHBR20 support on Radeon RX gaming GPUs and only allows it to be used on Radeon Pro, arguably for weird market segmentation reasons
***Arc A-series don't have a native HDMI controller, so support can be a bit flaky as it uses an internal converter from DP

 

[dylan06]

I noticed that this happens after i switch on game mode on 60hz nothing happens

 

[Dr. Dro]

I noticed that this happens after i switch on game mode on 60hz nothing happens

Lower refresh rate also reduces the bandwidth needed, so the problem stops. For example, 4K at 30 Hz and 1080p at 120 Hz need roughly the same bandwidth, as 1080p has four times less pixels than 4K, more or less the same data requirements if you push them four times faster.

A lot of companies get away with selling these phony "ultra high speed cables" because more often than not, people are just gonna use them to hook up a PS4 which is gonna run at 60 Hz anyway - the issues won't manifest so they're none the wiser. When you push both resolution and refresh rate at the same time, that's when the problems are exposed.

 

[dylan06]

Lower refresh rate also reduces the bandwidth needed, so the problem stops. For example, 4K at 30 Hz and 1080p at 120 Hz need roughly the same bandwidth, as 1080p has four times less pixels than 4K, more or less the same data requirements if you push them four times faster.

A lot of companies get away with selling these phony "ultra high speed cables" because more often than not, people are just gonna use them to hook up a PS4 which is gonna run at 60 Hz anyway - the issues won't manifest so they're none the wiser. When you push both resolution and refresh rate at the same time, that's when the problems are exposed.

So you think the problem is the hdmi other than that everything is ok no hardware problems?

 

[Dr. Dro]

So you think the problem is the hdmi other than that everything is ok no hardware problems?

Pretty much as simple as replacing the cable and your problems will be gone.

 

[dylan06]

Pretty much as simple as replacing the cable and your problems will be gone.

Good to know then thanks