cheapest AMD GPU with 4K support?

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Jan 8, 2015
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Hey, can anyone tell me what is the cheapest AMD GPU with 4K support? Only for like movies and desktop stuff, or should I rather upgrade only CPU? If so which one is good for fair price?
 
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The A10-7850K, 7700K, and 7600 all support 4K. Of those the cheapest is the 7600. I'm not sure if there are cheaper options. Bear in mind that most of them will only do 4K@30Hz, since most motherboards for these will use HDMI 1.4 at best.
 
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Thanks a lot mate for information, hmm 30Hz.. that aint much, what If I just upgrade GPU instead, could some GPU run 4K TV screen in 60hz refresh rate? whats the cheapest card for that purpouse? mobo model gA-870A-ud3, thanks again
 
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Most graphics cards today can do 4K video at 60Hz (not gaming, though 😛). The real limit the APU's have is not power; they have enough of that for sure. The problem is the connection. HDMI 1.4 does not have enough bandwidth for 4K at 60 Hz, so it limits you to 30Hz. You need to use a higher bandwidth connection like DisplayPort or HDMI 2.0, which sadly most motherboards do not have.

The bigger problem is with your TV, though. DisplayPort is not a very common connector at all on TV's, and HDMI 2.0 is still very new, and it is not common even in the most modern 4K TV's. So even if we did get a motherboard with a DisplayPort or HDMI 2.0 connector, your TV is more likely to have an HDMI 1.4 connector, which defeats the purpose since there is no way we can get a 60Hz signal to it.

Before we continue hypothesizing, then, I'd double check to see if your TV supports either DisplayPort or HDMI 2.0. Once we figure that out, we can figure out what options we have, and how to get 4K60Hz on it.

 
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The very first response on that forum answers that :) The 7990 is an older card; it only has HDMI 1.4. In fact, the only cards I know of right now that have HDMI 2.0 are the GTX 970 and GTX 980 (possibly the 960), all of them overkill for a media PC.

Getting an adapter might not work either. I don't know how adapters handle going from DisplayPort to HDMI, and if it would preserve the 60Hz signal. From what I remember, though, since the HDMI 1.4 and 2.0 connectors are physically the same, it is possible an adapter would just carry the signal and work, but I'm not sure.
 
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Meh that sux.. but that adapter maybe would be fine if someone is more sure about this, anyway if I would decide to stick with 30hz, would be there some quality decrased or could that do some harm to eyesight or such as it was with old CRT screens? Hmm maybe I could go with GTX 960 Im looking for AMD card, any ideas?

 
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Quick Googling says the 960 does support HDMI 2.0. You'll have to carefully check that the one you pick out has it, but otherwise it should work. It's a lot more than you need for just media, but it will work if we need something that will work for sure.

There should be no health effects to 30Hz. After all, most movie and TV video comes in 24 Hz, so most content will not be affected. Most people do prefer a higher refresh rate, though, at least on the desktop, to reduce stuttering animations. The screen definitely won't flicker like a 30Hz CRT would, though, since LCD's have much higher persistence.

This is also interesting. It might mean we can get away with a HDMI 1.4 connection after all, sacrificing some quality.

I can't find anything definitive right now on adapters from Displayport to HDMI 2.0. I'll keep looking and tell you if I see anything.
 
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