At what point will I become CPU / other hardware limited

Guest2

Guest2

Guest2

Soldato
Joined
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I have a GTX670 and i5 760 @ 4ghz. If I bought another 670 or a 780, would I become CPU limited?

There are so many 4470k or whatever CPUs now I have no idea how far I am behind but the actual clocks are not at 5ghz yet that I can see.

I also 'only' have 8gb of RAM. Not sure whether this would limit anything
 
Guest2 said:
I have a GTX670 and i5 760 @ 4ghz. If I bought another 670 or a 780, would I become CPU limited?
Click to expand...

Yes (670 SLI), though you might be ok if upgrading to one faster card like the GTX780. I think there would still be a bottleneck, but it wouldn't as severe as the restriction having two gpus would bring.
 
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at 1080p you would have a CPU bottleneck

this would reduce with higher resolutions but the higher you go the less fps you'll get.
 
you will be cpu bottlenecked slightly but not so much that you wont see a big improvement from either of those upgrades imo, i dont see much of a cpu bottleneck with my system for insance, maybe my minimum fps on bf4 may increase from like 50 to 60 with a cpu upgrade but i doubt ill see more than that.
 
Your CPU @4GHz should still be able to cope with either upgrade. I game with a GTX780 at 1440p and it copes fine. With the 670's you may find the you become limited by the 2GB VRAM especially at that resolution. Obviously it will differ between games. 8GB of RAM however is perfectly fine.
 
Thanks - The only game that maxes vram is Titanfall - but that plays at 40-60fps anyway in 1440p

I think 1440p + high AA + AF will use a lot of vram but at the moment 1440p and no AA doesnt max it out
 
Guest2 said:
I play at 1440p. Why would i be bottlenecked with 670SLI but not a single card? (780)
Click to expand...

670SLI will outperform a single 780, in terms of framerates.
e.g. 670SLI will achieve 80fps on a game that the 780 gets 60fps.

So to achieve the full potential of a 670 SLI setup, your other components would need to also able to push 80fps, whereas running a single 780, your other components would only need to be capable of 60fps.

(when i say 'your other components' it's primarily your CPU).


Then again, VRAM is another issue, and 2GB in an SLI configuration doesn't seem like enough - you'll have plenty of horsepower for fps, but you might have to turn settings down to stay below the VRAM limit.
 
https://www.youtube.com/watch?v=DAgpvWc4VBM
this guy tests unigine valley and bf3 on a 680 with a number of cpus (well an i7 then an i7 underclocked and cores disabled etc) unigine valley there's like no difference between i5 and i7 (hyperthreading enabled) but although he brushes over it a bit there's quite a big increase between an i5 and an i7 on bf3, so yeah heavily threaded games and stuff that likes hyperthreading which is going to be more games in the future, it would be beneficial to go to an i7.
 
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