3GB enough for 4K GTX 780ti SLI

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B3NDY

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Apr 18, 2014
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My basic question is will the 3GB on the 780ti be enough for 4k at pretty high seetings with 2 780ti's?

The reason is I have one 780ti at the moment and I have already got a 4K panel. I knew I wouldn't be able to play most games at 4K when I bought the monitor so I always had the intention of upgrading by getting another 780ti and putting them in SLI. The problem is it has recently come to my attention that the 3GB of RAM may not be enough to play games at 4k and I know frame rate plummet once the RAM runs out so I don't want that to happen.

My only real option if there isn't enough RAM is to get the 970 with 4GB. The reason is becasue I could sell my 780ti to get a 970 and then I have the money to buy another but I certainly cannot afford a 980 right now and especially not 2 of them. The only reason I got the 780ti is because the prices had dropped and I didn't realise the 900 series were coming.

Any ideas on what the best option would be?
 
Solution
Duckhunt
Yup 4k is soon to be here and supported but the GPUs are not here yet. I have a 4k Tv and I tried 780 and it was not handling it.

Though I knew it would not and did not try to tweak it because if you take off all the fancy settings. What is the point at gaming at the resolution?
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Nov 5, 2014
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Yup, you need at least 4GB of VRAM for 4k, I'd sell all of your 780 ti for 2x 970s. Well, actually you'd need 3x 970s to go up to high settings.
 
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B3NDY

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I'm only going to be using one 4k display
 
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You'll probably be able to play some old games with medium to high settings, but with the new games like FC4 or BF4, you'll definitely struggle with them. I tried to play BF4 4k@ultra with only 2 GPUs (Didn't realize my Crossfire was off) and all I got was game freezing. Then I turned on my crossfire and used all 4 GPUs, then I have no problems with 4k ultra.
 
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Walter Powell

Walter Powell

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GeForce 1000 series

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GeForce 1000 series


Release date
2016

Models
GeForce series
GeForce GT series
GeForce GTX series


Rendering support


Direct3D
Direct3D 12.0

History


Predecessor
GeForce 900 series

Successor
GeForce 1100 series

The GeForce 1000 series[citation needed] is a family of graphics processing units being developed by Nvidia, for use in desktop and laptop PCs. It will serve as the introduction for the Pascal architecture (GP-codenamed chips), named after the French physicist Blaise Pascal. It will include three key new features: stacked DRAM, unified memory, and NVLink.

3D Memory: Stacks DRAM chips into dense modules with wide interfaces, and brings them inside the same package as the GPU. This lets GPUs get data from memory more quickly – boosting throughput and efficiency – allowing Nvidia to build more compact GPUs that put more power into smaller devices. The result: several times greater bandwidth, more than twice the memory capacity and quadrupled energy efficiency.

**Unified Memory**: This will make building applications that take advantage of what both GPUs and CPUs can do quicker and easier by allowing the CPU to access the GPU’s memory, and the GPU to access the CPU’s memory, so developers don’t have to allocate resources between the two.

NVLink: Today’s computers are constrained by the speed at which data can move between the CPU and GPU. NVLink puts a fatter pipe between the CPU and GPU, allowing data to flow at more than 80GB per second, compared to the 16GB per second available now.

Pascal Module: NVIDIA has designed a module to house Pascal GPUs with NVLink. They are one-third the size of the standard boards used today.

Pascal is due in 2016.

Sorry for the cut and paste, but it looks like Pascal in 2016 is the architecture to wait for. With the introduction of unified memory between the cpu/ gpu and increased bandwidth across the new on die memory subsystem, this will finally bridge the gap between pc and console.
 
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Duckhunt

Duckhunt

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Sep 22, 2012
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Yup 4k is soon to be here and supported but the GPUs are not here yet. I have a 4k Tv and I tried 780 and it was not handling it.

Though I knew it would not and did not try to tweak it because if you take off all the fancy settings. What is the point at gaming at the resolution?
 
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Solution
mr91

mr91

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Jan 25, 2013
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I suggest you wait until big Maxwell comes out, I'm maxing out my 4gb frame buffer @ 1440p in many games when gaming on a gtx 980... In my opinion 4 GB is enough for 1440p at the moment, the only game that i need to lower the textures in is shadow of mordor.

 
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princepwnage

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Sep 10, 2014
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Yes it is enough right now I have been running shadow of mordor and battlefield 4 just fine at 4k bf4 at max settings on 780 ti classy's at 1200 core the only reason I would say upgrade to the 980 is for the dx12 and the extra vram but if you already have 2 cards don't bother just wait for gm 200 or amd 390x
 
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