Is a single GPU enought to run 4K/UHD?

David Williams

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Jul 7, 2013
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Hi all,

I recently got a great deal on a 4K/UHD monitor.

i was wondering if a single (affordable) graphics card could run games at 4K/UHD resolution or if a SLI/Crossfire set up is needed.

Any recommendations would be welcome.

Thanks in advance :)
 

InvalidError

Titan
Moderator
If you dial details down a few notches, particularly compute-intensive things like high-quality shadows and full-screen anti-aliasing, the top-end single-GPU solutions should be fairly usable. If you want to set everything to ultra then you may end up needing SLI/CF.
 

David Williams

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Jul 7, 2013
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Thanks for the reply, I've heard that there are issues with SLI/Crossfire setups running 4K/UHD - have you heard anything about that?
 
You're going to need a pair of cards in SLI.

http://www.techpowerup.com/reviews/ASUS/GTX_780_STRIX_6_GB/25.html
ac4_3840_2160.gif

bf4_3840_2160.gif

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Maybe if you're a big World of Warcraft player.
wow_3840_2160.gif
 

InvalidError

Titan
Moderator

The most common issue with any SLI/CF setup is micro-stuttering caused by a combination of driver/API/framework interactions and frames not necessarily finishing rendering in-sequence when one GPU renders a more complex frame than the other.
 

David Williams

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Jul 7, 2013
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O if a single card solution will work, which would you recommend? Thanks.
 

I'm sorry, did you not see the benchmarks showing FPS in the 20's with a single card with AA off? There isn't a lot to be gained even if you did take more extreme measures and sacrifice your image quality. You're suddenly not going to go from 25 FPS to 50, and even if you did, the tradeoff in textures wouldn't be worth it. 4K is expensive, you need a lot of GPU power, and you need to understand that up front.
 

InvalidError

Titan
Moderator

You already have the GPU and it sounds like you already ordered the display.

My recommendation? Try what you already have and see what little/much you need to give up to get frame rates you can be happy with and decide how much more you are willing to improve that from there.

AMD has historically had many more issues with stuttering in their multi-GPU setups so Nvidia would be the safer option.
 

David Williams

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Jul 7, 2013
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Thanks - that card was already heavily over priced here in New Zealand, so purchasing another at this point is not an option.
 

David Williams

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Jul 7, 2013
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Thanks, I will check out the thread.
I appreciate the costs involved, but as i said the monitor was worth picking up at the price.
I'm happy to wait and see if my current GPU drops in price and then pick up a second and run in CF.