[SOLVED] What prevents 1440p60?

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U

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Games lock to 30 whenever 1440p is selected. If I change the fps to 60 the picture drops out. Set it to 4K and the games will allow whatever frame rate the GPU (GTX 780) can do, whether that’s several hundreds of frames or ten. I end up getting higher frames at 4K than at 1440p (there are some games where frame rate gets destroyed since it is a 780 running these games). Using a 4K TV. To be fair, the manual does not say it supports 1440p, but it seems strange that that it would support 1440p30 but not 60 (or maybe it isn’t).
 
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boju
Lets not overthink it.

Refresh rate (Hz) of a display (Monitor or TV) is separate from the GPU so getting say 100fps wont change a 30Hz display to 100Hz.

A GPU will output however many frames it can at any given resolution. Fps wont be limited unless GPU is incapable (Not powerful enough) or Vsync is turned on to sync the refresh rate. ie; Vsync caps frame rate to 60fps on a 60Hz screen, Vsync turned off the fps wont be capped but you'll get screen tear if fps is over the refresh rate. 100fps on 30Hz screen will be missing 70 frames/sec.
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However Shadowplay and Steam’s fps counter and my eyes tell me the opposite is happening. Games that can do it wil hit 4K60 with no issue. 1440p always caps/defaults to 30. If I try and go for higher frames at that resolution, picture drops out. I find it very strange

Even the Nvidia control panel doesn’t let me go higher than 30 Hz (I may be confusing frames with refresh rate in the settings)

Edit: So confused. If I change resolution in Windows’ setting I gets hundreds of frames at 1440p. Windows let’s it stay at 60 Hz.

Edit: I did what you suggested, tested a game out and then set my resolution back to 4K and the game is happy to do 1440p north of 30 with no issues. Now why did my games have me believe this wasn’t possible. Been using 1080p in situations where 4K wasn’t feasible all this time
 
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boju

boju

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Lets not overthink it.

Refresh rate (Hz) of a display (Monitor or TV) is separate from the GPU so getting say 100fps wont change a 30Hz display to 100Hz.

A GPU will output however many frames it can at any given resolution. Fps wont be limited unless GPU is incapable (Not powerful enough) or Vsync is turned on to sync the refresh rate. ie; Vsync caps frame rate to 60fps on a 60Hz screen, Vsync turned off the fps wont be capped but you'll get screen tear if fps is over the refresh rate. 100fps on 30Hz screen will be missing 70 frames/sec.
 
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