GTX960 HDMI @ 4K 60Hz?

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simonashtonuk

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Hi everyone,

I have a Samsung UE49MU6120 TV which is 4K capable. (I assume it can do 4K @ 60Hz because it handles 60Hz at all other resolutions. Maybe my assumption is wrong, though?)

I bought a GTX960 because it is supposed to give 4K on the HDMI port.

I don't get the option to select that, max. is 1920 x 1080 even in the Nvidia control panel. I have tried the 'custom resolution' option and while most of the time it refuses to give what I want, I can sometimes get it to go 4K @ 30Hz. It's rather flaky about doing it or giving me a blank screen.

I just can't get it to go 4K @ 60Hz or even 50Hz. It simply says my display does not support this.

Any ideas?

FWIW the GTX960 is a cheap one from eBay that appears to have no manufacturer other than Nvidia so I don't think the drivers are ideal. There must be a way to force 4K @ 60Hz on the HDMI port though, right?

Thanks!
 
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What exactly is the place you got that 960 from? Do you have a link? It has been widely known that on Ebay cards are rebranded as a 960 or 1060 and sold dirt cheap, while in reality it may be a 560 or 660. They would flash the bios (not too sure what it is for the GPU) that would trick the PC into recognizing it as a 960.

I have a feeling I might be seriously wrong, but I thought I should put this out there IN CASE it is useful.
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Eximo

Eximo

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No other drivers really exist for Nvidia GPUs, they are not board partner specific.

Yes, the GTX960 is capable of running 4K @ 60hz via its HDMI 2.0 port. Double check your television, they often have specific ports for 4K @ 60hz, all other ports would only be capable of 4K @ 30hz.

You'll also need a high speed HDMI cable. These are a bit more tricky, as most are high speed, but for 4K @ 60hz over any significant distance you need a decently made cable. Any dropped packets and there won't be enough bandwidth to run the resolution.
 
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boosted1g

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So 2 things.

1) Your assumption is quite wrong. HDMI spec 1.4 (what your GTX 960 has), can do 1080p@60, 1440@60 or 4k@30. Bottom line you will need EVERYTHING: GPU, HDMI Cable, Home Theater Receiver (if using one) and TV to be HDMI 2.0 spec to get 4k@60hz.

EDITED: It appears that some 960s do have HDMI 2.0, so check your specific model

2) A 960 will play movies at 4k but it is grossly insufficient for any sort of gaming at 4k. Even a 1060 can only handle gaming at 1080p (at least not without turning settings way down). If you want 4k then you at absolute minimum need a 1070 and even then you are pushing it to max end of its abilities, and thus a 1080 would be recommended.

If you just want to watch 4k movies then the cheapest option is to go pickup a GT 1030

Then there is "generic NVIDIA card off ebay aspect" This is a massive dice roll, maybee you get some OEM lower spec version of that card, or quite often you get a much older card with a fancy cooler attached to it. Putting it simply: you get what you pay for.
 
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simonashtonuk

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Wow, thanks for all the quick answers!

I do not want to play games at 4K 60Hz, I want top run my PC, mostly making use of the large desktop space for huge Excel files and CAD work. Running at 30Hz the mouse is slow to respond and difficult to use.

Regarding the GTX960 I was under the impression it supported HDMI 2.0, it certainly says that on the Nvidia site, although perhaps that is the later versions of the card only?


Display Support:
5120x3200Maximum Digital Resolution
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
Click to expand...

This card does not seem low spec despite the good price:
q5d.png


As for the TV it says 3x HDMI 2.0 ports and I have tried all of them.
 
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simonashtonuk

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Just noticed it says PCIE 1.1, even though this PC can do PCIE 3.0. That said this is not the PC I'm trying to run the TV from! I have two of the same graphics cards.

Edit: it seems to switch I guess it's a kind of power saving mode or something.
 
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Eximo

Eximo

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I have a GTX950 in my HTPC for 4K, rarely run it in that resolution though, so little worthwhile content. Most of my 4K consumption is actually through the smart TVs applications.

I probably should get a GT1030 at this point and let someone use the GTX950 for some light gaming.

If you can get the exact SKU or model of your GPU we can check to see if it has HDMI 2.0. It is odd, I was under the impression that Nvidia made no reference boards for the GTX950 and GTX960, might have contracted PNY or someone to make them though.
 
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Eximo

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Put a load on the GPU and it will ramp up to PCIe 2.0 (or at least it should)

Sounds like an older system. It should still work.

Looks like a Biostar product, so they probably were hired by Nvidia to make their cards.
 
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ArchitSahu

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What exactly is the place you got that 960 from? Do you have a link? It has been widely known that on Ebay cards are rebranded as a 960 or 1060 and sold dirt cheap, while in reality it may be a 560 or 660. They would flash the bios (not too sure what it is for the GPU) that would trick the PC into recognizing it as a 960.

I have a feeling I might be seriously wrong, but I thought I should put this out there IN CASE it is useful.
 
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simonashtonuk

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Ah ha! You were right, I got fooled!

I've taken the heatsink off and it is a GTS450.

I'll have to start a return.

I had convinced myself the great price was because a Chiense crypto mine had a lot of unbranded cards to off-load. no such luck.

https://www.ebay.co.uk/itm/For-NVIDIA-GTX960-4GB-GDDR5-128Bit-PCI-Express-Video-Graphics-Card-Gift/382310849402

Thanks for helping me get to the bottom of this.

 
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