HELP. Can't set refresh rate above 60hz

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MoonDoggy-X

MoonDoggy-X

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Mar 10, 2015
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I was looking to upgrade my rig, so I downloaded Fraps to see exactly how many fps I was getting. While benchmarking, I noticed that I was maxing out at 60fps. I changed then Max frame rate in the game to 75, but it kept setting itself back to 60fps. I then went to the NVidia control panel and tried to change the refresh rate there, bit it will not go above 60. Changing the v-sync settings didn't help either.

I have a GTX 960 gpu hooked up to a Vizio 32"(model# M322i-B1) tv with hdmi. The tv says it has refresh rate of 120hz, The rest of my rig is listed below. Is it the card, the comp or the tv? I'm almost ready to take a hammer to all 3!Thanks in advance for any help that can be offered.

PCU: Intel Core 2 Quad q9550 @2.83ghz
Cooling: OCZ Vendetta Heatsink w/fan
MOBO: EVGA nForce 750i FTW Motherboard
OS: Windows Vista Home Premium 64bit
RAM: 4gb PC 6400 DDR2 SDram @ 800mhz
Storage: WD Black 640gb HDD
PSU: 650 Watt PSU(don't remember the make)
Case: Cooler Master HAF Case
GPU: EVGA GTX 960 Super SC (formally GTX 285)
Monitor: Vizio 32" 1080p/120hz TV hooked up with HDMI
 
Solution
harboym
HDMI does not have the bandwidth to carry 120Hz. If your TV doesn't have a DisplayPort option than you can't transmit any media (games, movies, etc.) at 120Hz. If you are wondering why it doesn't have a DisplayPort, it's because it's a TV and was probably not designed with gaming in mind. TVs have supported 120Hz for a while but they are intended to be used in conjunction with your cable provider.
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harboym

harboym

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Jul 16, 2014
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HDMI does not have the bandwidth to carry 120Hz. If your TV doesn't have a DisplayPort option than you can't transmit any media (games, movies, etc.) at 120Hz. If you are wondering why it doesn't have a DisplayPort, it's because it's a TV and was probably not designed with gaming in mind. TVs have supported 120Hz for a while but they are intended to be used in conjunction with your cable provider.
 
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Solution
MoonDoggy-X

MoonDoggy-X

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Mar 10, 2015
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So I went to return the tv and the people at the store tried to say that I was only getting 60hx because of the cheap HDMI cable I was using. Against my better judgement, I gave their super-hdmi a shot. Only to get 60hz max again. So...

Anyone know of a good monitor in the $300-400 range? The higher the hertz the better, of course.
 
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bystander

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Dec 9, 2009
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That's not quite correct. 120hz TV's with HDMI 1.x versions, are limited to 60hz of input (75hz at low resolutions in some cases), that includes cable or any other form of input. The 120hz is provided by post processing within the TV. They take your input, and do one or both of a couple things; 1) they may allow you to use 24 FPS videos and simply display the images for 5 refreshes in a row, rather than do the conversion to 60hz, which isn't very accurate; 2) they'll take the existing images, and create images and insert them between the ones it received from the input device. This causes a lot of latency and often automatically disabled when connected to a PC and should be disabled if it isn't automatically done.

There are some HDMI 2.0 TV's that may start to allow 120hz, as the new HDMI 2.0 spec allows it, but you'll also have to have a GPU that can support HDMI 2.0, and I'm not even certain that they'll support 120hz if the TV maker decides not to support all 2.0 features (it could be required, but I'm not certain yet).
 
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MoonDoggy-X

MoonDoggy-X

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From Wikipedia, I got the max specs as:
2048×1536px @85 Hz (388 MHz) for VGA.
(1,920 × 1,200) @ 60 Hz for DVI
(2,048 × 1,536) @ 75 Hz for Dual DVI
Can't find specs of resolution/refresh rate for HDMI 1.3a, although I think it might be similar to Dual DVI.

IS this true??? Like, If i get a 120hz tv hooked up with vga, I can get it to refresh at 85hz or higher at 1920x1200?
 
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bystander

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That would depend on the TV and whether the internal clocks of the TV allow it. I'm not certain on that.

Displayport is also being supported on a few TV's, though I think only the 4k tv's. That also has higher hz abilities. You usually can find out what input modes it allows within the manual of the TV, including the PC modes.
 
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MoonDoggy-X

MoonDoggy-X

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I just got a brand new tv/monitor...39 inches(a little too big for my taste)... 1920 x 1080 @ 120hz... 4k @ 30hz... all through high speed hdmi... just under $300. I cheated a bit, though. :ange:


 
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