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  Topic Review (Newest First)
08-15-2019 07:44 PM
kithylin
Quote: Originally Posted by Cucumber View Post
I tried the XOC bios last night, and after a bit of experimenting i found out that i got worse performance in games with 100 more Mhz on the core. Disappointing to say the least. Ended up at 2075 core and 6177 mem using afterburner. I didnt bother testing different memory speeds, as i got to the goal i had, which was to have rock solid 60fps in 1440p in all areas of MHW with as close to maxed out as i could. From what i understand, you can gain performance with lower memory clocks sometimes? Is there maybe a post i have overlooked which explains all the little tricks and tips for overclocking 1080 Ti/Pascal?
XOC is mainly for liquid nitrogen / overclocking competitions. Yes you get lower performance per clock with XOC bios but that is usually made up by being able to go +200 to +300 or more Mhz over what you could on any other bios, and the higher voltage and no power limit. It's not really for air cooled stuff at all and not really great for water either.
08-15-2019 03:51 PM
Cucumber I tried the XOC bios last night, and after a bit of experimenting i found out that i got worse performance in games with 100 more Mhz on the core. Disappointing to say the least. Ended up at 2075 core and 6177 mem using afterburner. I didnt bother testing different memory speeds, as i got to the goal i had, which was to have rock solid 60fps in 1440p in all areas of MHW with as close to maxed out as i could. From what i understand, you can gain performance with lower memory clocks sometimes? Is there maybe a post i have overlooked which explains all the little tricks and tips for overclocking 1080 Ti/Pascal?
08-07-2019 05:54 AM
Streetdragon For me and both of my 1080TI FE cards +590 on memory is the sweetspot. 1Mhz higher and it drops performence. I think somewhere there the timings get worse or so
08-07-2019 05:01 AM
2ndLastJedi
Quote: Originally Posted by ThrashZone View Post
Hi,
As said this platform you get better results from gpu memory clocks
Reduce core clock from +130 and increase memory
Core dividers are +13 intervals
If +130 allows you to increase memory + reduce core a little more to +117 and increase memory more till you get closer to +700... memory is where all the gravy is at.

You should also be using curves for core clocks to reduce any droop.
It is with the curve , actually MSI AB scanner OC was used here , lol but it gave the same +136 as i could get manually . Im not going to push this card anymore because i want it to last another 2 years as it seems there is little reason to upgrade anytime soon unless i want to spend $1800aud . Ive had it since june 2017 and another generation at least is my new goal .
08-07-2019 04:47 AM
ThrashZone Hi,
As said this platform you get better results from gpu memory clocks
Reduce core clock from +130 and increase memory
Core dividers are +13 intervals
If +130 allows you to increase memory + reduce core a little more to +117 and increase memory more till you get closer to +700... memory is where all the gravy is at.

You should also be using curves for core clocks to reduce any droop.
08-07-2019 04:20 AM
kithylin
Quote: Originally Posted by 2ndLastJedi View Post
https://www.3dmark.com/compare/spy/8048753/spy/6128431
I have the dual slot Galax 1080Ti EXOC at +136 core and +400 memory keeping temps below 65c.
Quoted you post and score for comparison . Check the poor little 7700k , lol
It's interesting to see the graphics score is mostly unchanged, just +2% GPU performance with the ryzen system. I wonder sometimes if upgrading to new stuff is even worth it.
08-07-2019 03:45 AM
2ndLastJedi
Quote: Originally Posted by KenjiS View Post
https://www.3dmark.com/3dm/38304677?

Just spent some more time tweaking a bit. New case has significantly better temps (I'm at 65 or so under load, stock profile) I cant get more than +75 core and +50 memory on my Strix 1080 Ti... Is 2025 Core/2778 Ram good or not.

Good news is it holds that speed a lot better due to better cooling
https://www.3dmark.com/compare/spy/8048753/spy/6128431
I have the dual slot Galax 1080Ti EXOC at +136 core and +400 memory keeping temps below 65c.
Quoted you post and score for comparison . Check the poor little 7700k , lol
08-07-2019 03:26 AM
kithylin
Quote: Originally Posted by KenjiS View Post
Multiplying the 1389 that 3dmark was reporting by two, my bad

My memory offset was +50 or so on the pre-oc Strix

And yeah, i think i just didnt luck out on the silicon lottery slash mine just had no extra to give really. Oh well, its still plenty fast
Try and crank the ram a lot more. My 1080 Ti takes +700 ram and 2025 Mhz core clock on stock bios & stock voltage on a reference board.
08-06-2019 09:41 PM
2ndLastJedi Link not working
08-06-2019 08:08 PM
KenjiS
Quote: Originally Posted by kithylin View Post
It all seems to be silicon lotto and aftermarket / Custom-PCB cards don't seem to be any better/different than reference board cards in terms of normal overclocking (air and water cooling). Custom-PCB cards only seem to effect how far we can go on liquid nitrogen.

Some people have shown 2100 - 2150 Mhz core speed stable on reference PCB cards with good air cooling, and my card (EVGA GTX 1080 Ti SC Black Edition) is based on a reference board and only does 2026 Mhz, even with a large custom water loop and keeping the card < 40c even at full load. Some people have reported 2100 - 2175 Mhz with your strix card, or Custom-PCB cards.. and some people like you seem to only get 2025 Mhz out of yours. So it's all just a gamble.

What I have found with pascal cards though (1000 series from Nvidia) is that temps have the biggest impact on performance, way more than anything else, even more so than the design of the PCB. Aftermarket cards with big air coolers that can hold the temps down will overclock better (regardless of how the card's board is designed). I am confused a little on your memory speed though.. where are you getting that 2778 Mhz ram speed from? GPU-Z? What does afterburner say for your ram speed? The ram speed on these cards is reported differently in different programs and works on multipliers. My 1080 Ti runs with +700 Memory which results in 6210 Mhz for memory in afterburner, which is actually 12420 Mhz GDDR5x speed.
Multiplying the 1389 that 3dmark was reporting by two, my bad

My memory offset was +50 or so on the pre-oc Strix

And yeah, i think i just didnt luck out on the silicon lottery slash mine just had no extra to give really. Oh well, its still plenty fast
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