30fps cap on 4k tv

[stable fly]

just got a 4k tv and trried to play some pc games. i only have a hdmi cable from my x360 resident evil edition (bundled hdmi), it runs at 4k but games are capped at 30fps. i thought it was bandwith (i dont know wat hdmi version it is), but i switched doom to 1080p played for a while then back to 4k and i was clearly getting 60fps (i can tell difference between 30 and 60 with eyes). so cable seems to be able to do 40k 60 but caps at 30 for a lot of games. wtf is going on? sometimes i get 60+ fps but it clearly looks 30fps.

strange thing about my tv is normal dvd look way higher fps, i think dvd is 24fps but they look 50fps at least. i dont know wats wrong with the tv (samsung q6).

[Supafly]

All depends on the HDMI version. It needs to be Hdmi 2 or better to support 4k at 60 hz. Remember hz is not fps. You could produce 100 fps but if the cable can only transmit enough 4K frames to refresh screen 30 times you'll only get 30 newly drawn frames. all the others will be dropped. So you may very well get 60fps but the cable isn't transmitting 60fps. It's dropping every other frame.

Check the cable and if you're unsure get a Hdmi version 2 or higher cable.
TVs work different to Monitors. Some have features that double project images to make them appear smoother.

[stable fly]

just checked on wikipedia, its definitely not 2.0 because it came with a 2009 x360. probably 1.3 or 1.4.

why do i see 4k 60fps in doom? i dont think double project makes things smoother, it'll still look laggish. i find dvd movies also look smoother, which is a bad thing for movies (want lower fps for movies).

[Supafly]

To be honest I have no idea why Doom feels smoother and like 60 fps to you. The cable is not capable and I doubt other games will give you the same results. You'll need to purchased another Hdmi cable.

[stable fly]

Originally posted by Suicidal Monkey:

To be honest I have no idea why Doom feels smoother and like 60 fps to you. The cable is not capable and I doubt other games will give you the same results. You'll need to purchased another Hdmi cable.

ok its probably got to do with the tv, the movies are obviously 24 fps but they look 50fps in some scenes

can 1.3 do hdr @ 1440p 60fps? wikipedia says there's enough bandwith https://en.wikipedia.org/wiki/HDMI but does 1.3 support hdr? also how do i find out if a pc game support hdr? lol sorry if i sound noob im confused lol.

[Supafly]

Using the wiki link HDR isn't listed until Hdmi version 2.0a so no I don't think your cable will support that either. Most games don't support HDR. Even games that support it on consoles don't always support it on PC versions. Only way to know is to check the games information, web searches.

I honestly haven't checked as I don't PC game on my 4K HDR TV so don't pay much attention to it. I will when I upgrade to a HDR monitor but that won't be for atleast another year.

[a Hippobottomus]

Originally posted by Suicidal Monkey:

Using the wiki link HDR isn't listed until Hdmi version 2.0a so no I don't think your cable will support that either. Most games don't support HDR. Even games that support it on consoles don't always support it on PC versions. Only way to know is to check the games information, web searches.

I honestly haven't checked as I don't PC game on my 4K HDR TV so don't pay much attention to it. I will when I upgrade to a HDR monitor but that won't be for atleast another year.

Need to correct you. Buying a new cable won’t fix it. It is the HDMI ports that need to be 2.0. The cables are all the same.

[stable fly]

Originally posted by Suicidal Monkey:

To be honest I have no idea why Doom feels smoother and like 60 fps to you. The cable is not capable and I doubt other games will give you the same results. You'll need to purchased another Hdmi cable.

i just figured out why. it uses motion smoothing, it approximates the frame between the 30 fps and makes it look 60fps. i did remember it looking slightly different from 60fps on my monitor, a bit more laggy and micro stuttering.

i wonder why pc doesnt have this technology, u can play at 4k 60fps with a 1070 (1080 for more demanding games) and it'll look just slightly worse than a true 4k 60 which not even a 1080 ti can do consistently. literally twice the fps for a tiny bit of performance hit. its like checkerboard on consoles trying to do 4k, seriously not much difference and so much performance saved. checkerboard+motion smoothing u can 4k 60 with a 1060 lol.

[noob]

For the longest time I was stuck at 30 HZ for 1440p on my 4k TV. But I could get 60 hz on a 4k resolution [in my NVIDIA control panel settings] I have FINALLY fixed it! Here is the steps I took


1 'Game Low Latency' Input lag settings, low for gaming [TV Menu Settings]
2 Used HDMI 1 port on TV which has more functionality than the other HDMI ports [on my TV]
3 'Active full array' to High [TV Menu Settings]
4 'Computer' picture display option [TV Menu Settings]
5 Got an HDMI 2.0 cord, no longer than about 10 feet [if too long they lose functionality]

Before, I could not get more than 44 HZ on a 1440 resolution, even with forcing NVIDIA to produce a custom resolution. BUT! After doing the above steps and watching a tech video I simply went back into NVIDIA control panel, and the option for 1440p at 60 hz magically appeared and I am using that resolution now on my 4k TV. It took some thinking and scouring the online TV manual to understand what settings there are and what my options were.

Here is the tech video I watched:
https://www.youtube.com/watch?v=nfY9-tbaZYc