Is GTX 680 4GB SLI Good For 4k?

[infinitydawn]

Is a 2 x GTX 680 4GB good for 4k 60fps? Thanks! I have a i7 4770k, 16 GB ram.

 

[SolMiester]

I believe the memory buswidth hampers assess to the extra memory, so thats a no!

 

[Deders]

The thing with SLI is that even though the memory amount stays the same, the memory bandwidth effectively doubles, so whilst a single 4GB 680 might have problems accessing all 4GB at max bandwidth, It will be alleviated in SLI.

 

[futurefields]

Probably good enough for medium settings etc... won't be good enough for the games in 3-4 years probably.

Now, dual 780ti's? Now you're talking some serious 4k

 

[SolMiester]

The thing with SLI is that even though the memory amount stays the same, the memory bandwidth effectively doubles, so whilst a single 4GB 680 might have problems accessing all 4GB at max bandwidth, It will be alleviated in SLI.

Where and how does the bandwidth double? The hardware is the same! SLI has the same issue as a single GPU....the 256mb bus is still too narrow for the 4gb memory period.

 

[Deders]

Probably good enough for medium settings etc... won't be good enough for the games in 3-4 years probably.

Now, dual 780ti's? Now you're talking some serious 4k

I think 980's will perform better at 4k, but 780TI's won't be far off.

Where and how does the bandwidth double? The hardware is the same! SLI has the same issue as a single GPU....the 256mb bus is still too narrow for the 4gb memory period.

I had read ages ago that it did but you are right it doesn't double, but it still alleviates some bandwidth issues as each frame is alternately rendered. It's more like a raid 1 scenario. AA for instance in SLI takes less of a performance hit.

People have said that 4GB 256bit Kepler will only be able to deal with about 3.2GB before the bandwidth becomes an issue, but when SLI'd it can handle more.

I'd still go with either 2x 980's or 970's if you can't afford them.

 

[Silverforce11]

Is a 2 x GTX 680 4GB good for 4k 60fps? Thanks! I have a i7 4770k, 16 GB ram.

Not even 980 SLI is good enough for 4K with 60 fps. There are lots of dips to 30 fps.

You'll have to turn off AA, turn down shadows, HDAO etc. Then it would be good enough. But its a compromise.

 

[futurefields]

personally id rather take a lower res and max settings than push 4k with medium settings

 

[digitaldurandal]

I think 980's will perform better at 4k, but 780TI's won't be far off.



I had read ages ago that it did but you are right it doesn't double, but it still alleviates some bandwidth issues as each frame is alternately rendered. It's more like a raid 1 scenario. AA for instance in SLI takes less of a performance hit.

People have said that 4GB 256bit Kepler will only be able to deal with about 3.2GB before the bandwidth becomes an issue, but when SLI'd it can handle more.

I'd still go with either 2x 980's or 970's if you can't afford them.

Do you mean RAID 0?

Where are you getting this information from?

 

[KaRLiToS]

personally id rather take a lower res and max settings than push 4k with medium settings

That is because you NEVER tried 4k.

1440p low-med settings = 1080 Max settings

 

[Deders]

Do you mean RAID 0?

Where are you getting this information from?

Yes that's what I meant, It was my experience with SLI back when I had 9800GTX+'s that the impact of AA was significantly lessened with SLI and as for the memory usage it was tested by someone who was monitoring their cards.

 

[alcoholbob]

personally id rather take a lower res and max settings than push 4k with medium settings

Do you consider everything on Ultra except Shadows, AA, and SSAO to be Medium settings?

 

[Silverforce11]

Do you consider everything on Ultra except Shadows, AA, and SSAO to be Medium settings?

Personally I consider everything on Ultra, except for AO/HDAO and AA to be Very High. Because it still looks amazing, but runs a heck of a lot faster.

 

[tweakboy]

Nope! You need 2 Titans SLI to run at 4k with acceptable framerates.. 60fps with few drops only. A single 780 or 980 will go down on its knees. gl