CPU question - high end GTX 1080 SLI system with x79-ud3 motherboard

mrsatvat9999

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Jul 17, 2016
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Hi all - gaming question

i have a high-end GTX 1080 SLI system that I am running in 4k. The socket 2011 chip is on a x79-ud3 motherboard. I play a few games - more basic ones like Warcraft, more advanced ones like Witcher 3 and Doom.

In Warcraft, in particular, I know people have mentioned I might get CPU constrained more than other games.

I have a i7-4930k chip - six core, but lower mhz than others - I only use turbo boost and don't overclock - I have only air cooling.

Would I get a meaningful performance from (i.e. should I...)

1) Just overclock my current chip (I only use turbo boost in the bios)
2) Get another LGA 2011 chip, if there is any you think would help a lot (I think PC Gamer always recommends the i7-5820k or something like that)
3) Switch my motherboard and get a chip that goes with it? (I have seem many push the 4790k but obviously I would have to change my board which is a pain because of the socket?)

In Wow, in particular, which I play the most, at 4K, with 8x MSAA, 100% resolution, CMAA and graphics settings 7 on both regular and raids, I can't do steady 60FPS in my garrison currently on a single card, although I hope that will improve once I setup the SLI tomorrow.

Any advice? Thanks

 
Solution
Just overclock your chip to 4.2 and enjoy your 1080's in sli. as long as you don't have a 120hz or 144hz plus monitor I don't see any reason to upgrade. If you have a 4k monitor you won't have any issues.
I think overclocking would be the best option, the 4930k is still pretty good. You could go and get a water cooler if you want to push it higher than your air cooler.

If you decided to get a 5820k you would need an entirely new motherboard (Socket 2011-3 instead of your current Socket 2011), as well as new DDR4 RAM.

Getting something like a 4960X for your current board would give you a higher stock clock speed, but as you could overclock your current 4930k to the same speeds it isn't worth it.

Something like an i7 4790k or i7 6700k isn't worth it for the loss of cores, even with the higher base clock speed, and as you said you would need a new board (and DDR4 if you got an i7 6700k)
 
Bradsctt or others - I am little nervous about overclocking as I've never done something like that. Is there an easy (my usual terminology) fifth-grade level explanation you could give to me for how to do that on my board without causing any damage? I'll stick on air cooling
 
Hi guys - ok I overclocked my 4930k using all auto settings in my bios and the multiplier to 4.0ghz. This seems to be working fine and stable.

I use aircooling, but a really good air cooler, and seem to get 50-57C full load, even under a Furmark test.

What is a good ballpark for max ghz as a guideline for this chip under aircooling?

Also keep in mind I'll have two GTX 1080SLIs in there shortly and don't want the case to explode under the pressure of the heat :) That was a bad joke
 
As long as you stay below 80 degrees celsius under load you should be able to run whatever OC you can achieve :) 4930K is still a boss 6 core chip, i wouldn't be surprised if you can push it to atleast 4.2 ghz.
 
People can reach around 4.8 on water, so you should be able to handle at least up to 4.4-4.5 on air I guess.

Best to just test it by setting a clock and then stress testing it while keeping an eye on temps. If it starts to get too high then stop the test, shutdown, lower the clocks and repeat.
 
Hi gang - one more question

Ok - so I installed the 1080 slis and overclocked my chip. Everything runs at very normal, healthy heat, and when I do 3dmark tests everything seems fine

One problem with gsync - with witcher 3, if I turn on gsync, my fps dives down to 40-41 fps almost as if I only had one video card

If I turn it off, i get smooth 60fps 4k. What gives with gsync?