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[Official] NVIDIA GTX 1080 Owner's Club - Page 586

post #5851 of 11183
Getting two cards stable at 2100+ overclocks on air cooling is a feat in itself.
Will post what I get when my cards finally show up in a day or two.
post #5852 of 11183
Quote:
Originally Posted by KickAssCop View Post

How far they clock. Hopefully my cards are here today or tomorrow.

No overvolting, not much. +107 on the Core was all Firestrike would allow, I could easily do +125 on Timespy though, so that's +178mhz over base/founders, I guess. But long boost leveled around 1946 after running a while, otherwise, it'll; briefly boost to 2075 max I think...
post #5853 of 11183
I noticed that I am able to get a somewhat higher overclock when I have vsync / gsync ON vs OFF.

Now obviously my Firestrike-scores will be lower, due to 100 fps cap (I have a acer x34a), but in high-demanding games where I won't hit 100 fps stable with everything maxed (Witcher 3, Division, Fallout 4 with mods etc) I am able to increase my average FPS with 3-7 and my min fps with 4-7.

With VSYNC off I can only run 2126 on core and +478 on memory and still pass Firestrike and the stability test.
With VSYNC on I can run 2151 (two steps up) and 512 on memory and pass everything above.

Anyone else experienced this or is it perfectly normal?
post #5854 of 11183
That is completely normal.

You are not stressing the card as much since the cap is reached. The lower usage - the less stress on the GPU = higher OC.
post #5855 of 11183
There is a lot to learn in this thread it seems. Sadly we won't get the max overclocks on these cards until bios modding is available. You need to keep these cards cool, it was said a billion times with the 9xx series cards and the same holds true for these, the cooler the card the better your overclock with boost enabled.

You also need to keep in mind that just pumping up those sliders in your OC program isn't going to net you that overclock, valley etc read the wrong speeds, you should be monitoring speeds with GPUz or similar, GPUz will also tell you what PerfCap you're hitting.

Example: My first 970 I pumped the sliders up and hit 1500mhz for the first time but it wasn't staying there because of perfcaps even though valley read that I was it never actually hit 1500mhz.

The guys running these cards on water will be removing their thermal barriers but until we can truly unlock voltage and power we're yet to see their full potential.
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post #5856 of 11183
Quote:
Originally Posted by GreedyMuffin View Post

That is completely normal.

You are not stressing the card as much since the cap is reached. The lower usage - the less stress on the GPU = higher OC.

But I am still stressing the card more in The Witcher 3 with the 2151 OC than I do with the 2126 OC, but it remains stable, as I am not at 100 fps cap yet, so every extra frame means the card works a bit harder. No?

I get why the stress-test is stable with vsync on, but I don't get why the game is stable with vsync on.

If I run the 2151 clock with vsync off, the witcher 3 will cause driver crash. if I run the 2151 clock with vsync on, the game runs just fine.
post #5857 of 11183
Quote:
Originally Posted by grimboso View Post

But I am still stressing the card more in The Witcher 3 with the 2151 OC than I do with the 2126 OC, but it remains stable, as I am not at 100 fps cap yet, so every extra frame means the card works a bit harder. No?

I get why the stress-test is stable with vsync on, but I don't get why the game is stable with vsync on.

If I run the 2151 clock with vsync off, the witcher 3 will cause driver crash. if I run the 2151 clock with vsync on, the game runs just fine.

Probably because you're hitting performance caps (PerfCaps) if you run GPUZ while running a game or bench it will show you what is going on with your card.
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post #5858 of 11183
I suppose there is no news/updates on custom bioses (or bios editors) for the 1080 FE's yet?

I performed der8auer's power mod using Thermal Grizzly Conductonaut... That works a treat but basically sent me straight into Volt-throttling. Considering I have a decent watercooling solution, I would think a few more mV could most likely help.
post #5859 of 11183
Quote:
Originally Posted by ucode View Post

I get a drop at 43C. How much it drops depends on the curve. wink.gif Multiple drops over a temperature range.

It doesn't help the rest of us without posting the curve also smile.gif
Please do so biggrin.gif
Edited by Fediuld - 8/29/16 at 7:03am
post #5860 of 11183
Quote:
Originally Posted by Benjiw View Post

Probably because you're hitting performance caps (PerfCaps) if you run GPUZ while running a game or bench it will show you what is going on with your card.

I'll do some runs and log them to see what PerfCap I hit. There is probably something different with vsync on / of.

It might be because I was dropped as a kid but I can't wrap my head around how the card is put under more load when enabling gsync / vsync when I do not hit the frame-cap of 100. I stay at around 80-85 fps. If anything the card should be under more load using gsync because the gsync module and gpu have to talk to eachother.

I can understand that enabling vsync then locking the fps to say 100 would lessen the load, if the load otherwize would be something in the range of 150-200. But then enabling vsync (100) when the fps is less, should in my uneducated oppinion not affect stability.
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