GTX1080ti Overclocking

[Roobir]

Hi Carbonites,

I have recently added 'adequate' cooling to my GPU and would like to hear about your OC settings on the 1080ti?

Previously, on the open air cooler I used a 1870MHz boost at 0.975v (custom volt/freq curve) along with an aggressive fan curve to keep it around 70c (would sometimes hit 75c+, depending on the game and the temperature/heat wave in Centurion).

Since adding the new cooler my temperatures hit up to 35c in WoW, 40-41c in Apex, and up to 45c in Timespy. With a default volt/freq curve (and a mild +100 on core) I noticed that the boost would go up to ~2050MHz at 1.05v (or 1.07v iirc). Therefore, I configured a custom volt/freq curve for 1980@1.0v and stressed the GPU with some gaming and timespy last night. The GPU temperatures stayed almost exactly the same (as 1870MHz@0.975v), so perhaps I should go higher? My previous results with under-volting was quite huge on a founders edition card and pretty good on the Gigabyte open air card. Slightly higher voltage resulted in a couple of degrees hotter.

Please let me know what you guys are running for everyday use on a 1080ti (highest boost, voltage, and memory) and if you think under-volting is still effective when GPU is on water?

 

[Qui_Illustrati]

But.....why?

I mean - to what end the need for OC on a 1080ti? I'm curious

 

[BosMossel86]

I don't really OC my card when gaming.
I have two profiles, one silent profile with all set to Stock for windows tasks and one profile I use for gaming.

My gaming profile I set the cards Voltage slider is max and my TDP slider is max with a bit more aggressive fan curve than stock.
This give me a boost clock of about 1980Mhz stable while gaming with a max temp of around 70deg C.
I do not see the need for Core and Memory overclocks while gaming.
When my Voltage and TDP targets are set higher, the card boost higher.

I do a lot more effort when Benching, this sees my card boost over 2100Mhz but drops to about 2070Mhz stable due to temps and power draw. (cant recall my Memory OC)
Temps then Hit 80deg c with all fans at max.

This is with an EVGA GTX 1080Ti FTW3...

Maybe share some Timespy results.

 

[BosMossel86]

When I have time, I will overclock and give better feedback on voltages and Clocks.
At work and cant remember all my settings.

 

[Roobir]

But.....why?

I mean - to what end the need for OC on a 1080ti? I'm curious

To squeeze a bit more out of the GPU! Just feels that the default configuration can be tweaked to much better frequencies and voltages. The default voltage curve seems higher than what would be effective.

 

[Roobir]

I don't really OC my card when gaming.
I have two profiles, one silent profile with all set to Stock for windows tasks and one profile I use for gaming.

My gaming profile I set the cards Voltage slider is max and my TDP slider is max with a bit more aggressive fan curve than stock.
This give me a boost clock of about 1980Mhz stable while gaming with a max temp of around 70deg C.
I do not see the need for Core and Memory overclocks while gaming.
When my Voltage and TDP targets are set higher, the card boost higher.

I do a lot more effort when Benching, this sees my card boost over 2100Mhz but drops to about 2070Mhz stable due to temps and power draw. (cant recall my Memory OC)
Temps then Hit 80deg c with all fans at max.

This is with an EVGA GTX 1080Ti FTW3...

Maybe share some Timespy results.

I didn't save or submit all of the tries, but I could find this one from my history:

I scored 9 870 in Time Spy

Intel Core i7-8700K Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16384 MB, 64-bit Windows 10}

www.3dmark.com

I scored 23 866 in Fire Strike

Intel Core i7-8700K Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16384 MB, 64-bit Windows 10}

www.3dmark.com

This was on 2000MHz (not sure if on default or with the custom voltage/freq curve). I should have saved a few more on the 1980@1.0v, but all had about the same peak temperature of 45c.

 

[BosMossel86]

20 199 is very strong GPU score on Time Spy, but with the GPU under water cooling, you should be able to get a stronger OC on that card...

This was my Best GPU score on Time Spy...
I see it registered 2038Mhz on the core, but cant remember what the voltage was...

I scored 10 523 in Time Spy

Intel Core i7-5960X Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16284 MB, 64-bit Windows 10}

www.3dmark.com

 

[Roobir]

20 199 is very strong GPU score on Time Spy, but with the GPU under water cooling, you should be able to get a stronger OC on that card...

This was my Best GPU score on Time Spy...
I see it registered 2038Mhz on the core, but cant remember what the voltage was...

I scored 10 523 in Time Spy

Intel Core i7-5960X Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16284 MB, 64-bit Windows 10}

www.3dmark.com

Very impressive results!

I'll try increase it a bit for some benchmarking results (apparently my driver needs an update too!)

However, for everyday use, I think the 1980MHz OC should be good enough. Please let me know what kind of voltages you hit while gaming at 1980MHz?

 

[BosMossel86]

1980Mhz for daily is more than enough I think.
I will have a look at the voltages and get back to you on this thread.

 

[Stampede]

To squeeze a bit more out of the GPU! Just feels that the default configuration can be tweaked to much better frequencies and voltages. The default voltage curve seems higher than what would be effective.

With the pascal cards your aim should be to keep a consistent frame times,as an inconsistent frame-times is what makes the experience worse.I think this was mention by Gamers Nexus in one of his videos. Chasing FPS is really a pointless exercise. So your constraints are Temp, TDP, and ,to a degree, memory(size and speed) .

Most aftermarket cards come pre overclocked on the memory and core clock. Raising the the TDP will allow the GPU boost function to come into play, as currently your temp's does'nt seem to hitting critical levels. Voltage and TDP to me are related. You only undervolt so that you can decrease power drawn by the card because you are hitting the Limits. Hitting the TDP hard will cause your core clocks to drop, and cause frame times to increase(stutter) making the experience worse.

Problem is that different games will use more or less power, depending on the the game engine. that being said, undervolting may seem like a good idea, but the problem is that when you pushing the limits, you can be 100% stable in 1 game, and totally unstable in another. Leave this on AUTO, unless you have a TDP of 400watts+ on you card

If you want the most out of your card, cool it as much as you can, Increase TDP to Max(you can resistor mod if you brave) and increase the clocks and mem slider to about 2050mhz core/+500 mem, and that's gonna gonna give you decent performace, with the best experience. Silicon lottery comes into play, but generally for the Pascal GPU's thats where you will end up with.

 

[Roobir]

With the pascal cards your aim should be to keep a consistent frame times,as an inconsistent frame-times is what makes the experience worse.I think this was mention by Gamers Nexus in one of his videos. Chasing FPS is really a pointless exercise. So your constraints are Temp, TDP, and ,to a degree, memory(size and speed) .

Most aftermarket cards come pre overclocked on the memory and core clock. Raising the the TDP will allow the GPU boost function to come into play, as currently your temp's does'nt seem to hitting critical levels. Voltage and TDP to me are related. You only undervolt so that you can decrease power drawn by the card because you are hitting the Limits. Hitting the TDP hard will cause your core clocks to drop, and cause frame times to increase(stutter) making the experience worse.

Problem is that different games will use more or less power, depending on the the game engine. that being said, undervolting may seem like a good idea, but the problem is that when you pushing the limits, you can be 100% stable in 1 game, and totally unstable in another. Leave this on AUTO, unless you have a TDP of 400watts+ on you card

If you want the most out of your card, cool it as much as you can, Increase TDP to Max(you can resistor mod if you brave) and increase the clocks and mem slider to about 2050mhz core/+500 mem, and that's gonna gonna give you decent performace, with the best experience. Silicon lottery comes into play, but generally for the Pascal GPU's thats where you will end up with.

Thanks for the info

Referring to WoW the clocks are mostly stable with little to no movement on the boost. I believe Apex Legends was similar, but timespy/firestrike was a bit more erratic (even though maximum temperature was only 45c) - perhaps this more to do with the power draw?

I will try default the card settings, increase core with +130MHz, power to 120% (think that is maximum on MSI afterburner), and memory to +500. What do you think is a good everyday overclock for the core and memory?

 

[Stampede]

Thanks for the info

Referring to WoW the clocks are mostly stable with little to no movement on the boost. I believe Apex Legends was similar, but timespy/firestrike was a bit more erratic (even though maximum temperature was only 45c) - perhaps this more to do with the power draw?

I will try default the card settings, increase core with +130MHz, power to 120% (think that is maximum on MSI afterburner), and memory to +500. What do you think is a good everyday overclock for the core and memory?

You need to do some testing, as with my msi gtx 1080 only need +100 on core, while Titan XP needs like +170 to reach over 2050mhz peak. But the titan XP can hit power limit in certain games, while the gtx 1080 never does(custom bios). Best thing to do is run time spy at 4k, and the second test will push the power limits. Watch the graphs and see if the clock speeds drop alot(they drop in 13mhz I think) long as the drop is not more then 50mhz or so you should be good.

You also get time spy long term stress test, if you get over 98%(difference between the best and the worst run) your overclock is very good and smooth.

 

[heinreich]

Curious, what cooler and case do you use? I have modded my 980ti sea hawk from its stock 120mm single fan to a 240mm push/pull front intake and my temps have dropped dramatically. Max I get in a game like Kingdom come (which according to afterburner utilizes 99% of the card?) is around 50-51. Using the thermaltake water 3.0 extreme and the stock blower fan (because i dont see an easy way to add the G12 to this card without risk of damage?)

Ps. I have the NZXT Manta case (itx with space for like 400 fans)

 

[Roobir]

Curious, what cooler and case do you use? I have modded my 980ti sea hawk from its stock 120mm single fan to a 240mm push/pull front intake and my temps have dropped dramatically. Max I get in a game like Kingdom come (which according to afterburner utilizes 99% of the card?) is around 50-51. Using the thermaltake water 3.0 extreme and the stock blower fan (because i dont see an easy way to add the G12 to this card without risk of damage?)

I installed the Corsair H55 with CoolerMaster MasterGel Nano (11W/m.k) and 2x Corsair ML120 fans at around 70% duty cycle (on a hub connected to motherboard). The pump and 92mm fan (for the power and VRMs) are connected via a thermaltake commander for full power.

The case is a Cooler Master MasterBox 5 lite. Pretty basic case with both radiator+fans connected at the front (as intake).

 

[heinreich]

That is really impressive. How is the db/noise on thise ML? I think i need to service my H55 a bit. I know i know... You dont service AiO but obviously not getting the same performance I should. I take it you used the G12 bracket?

 

[Roobir]

That is really impressive. How is the db/noise on thise ML? I think i need to service my H55 a bit. I know i know... You dont service AiO but obviously not getting the same performance I should. I take it you used the G12 bracket?

Yeah, using the G12 bracket at the moment. The noise is pretty good. I believe at full blast it is 35dB. At 70% it is not too bad (although I have previously used the JetFlo fans at like 80%, which has probably deafened me).

I would definitely recommend a fresh MasterGel Nano paste along with the ML120s. @RebelTech has a great price on the double-pack without LEDs (they do have LED options available too).

 

[Roobir]

Some interesting results,

Power 120%, Core +150MHz, Memory +475:

I scored 10 268 in Time Spy

Intel Core i7-8700K Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16384 MB, 64-bit Windows 10}

www.3dmark.com

Power 120%, custom volt/freq curve of 2012@1.0V, Memory +450:

I scored 10 057 in Time Spy

Intel Core i7-8700K Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16384 MB, 64-bit Windows 10}

www.3dmark.com

The difference was 2c peak between these two tests. 48c for no under-volt and 46c for under-volt.

 

[ngoni615]

HOLD My beer boys lol let me show you what my bad boy can do
2050 stable through benches. in games it can hold 2076mhz on the core and 6210mhz on memory = 12420mhz effective
will post timespy results later on. what scores do yal get.

 

[heinreich]

Show me them temps as well prease.

 

[Ron McDon]

But.....why?

I mean - to what end the need for OC on a 1080ti? I'm curious

1440p or 4K gaming? Benchmarking? Just cause?

 

[Roobir]

HOLD My beer boys lol let me show you what my bad boy can do
2050 stable through benches. in games it can hold 2076mhz on the core and 6210mhz on memory = 12420mhz effective
will post timespy results later on. what scores do yal get.

That is pretty impressive! What kind of temperatures do you get while benchmarking and playing games? (Also what card do you have?)

I could get 2012MHz on 1.0v, 2020MHz crashed at 1.0v. I could push it up to 2050MHz on default voltage curve for successful benchmarks.

I am buying a new case, should arrive soon. Will have ample room for many radiators and proper airflow direction! I also have my eye on the NZXT X72 for the GPU, maybe then I'll give frequency higher than 2050 a shot!

 

[Roobir]

It seems I could get up to 2063MHz on the default freq/voltage curve:

I scored 10 268 in Time Spy

Intel Core i7-8700K Processor, NVIDIA GeForce GTX 1080 Ti x 1, 16384 MB, 64-bit Windows 10}

www.3dmark.com

 

[heinreich]

Pardon my ignorance but doesn't GPU Boost 3.0 sortof hardcap the max frequency automatically? It might show +300 in Afterburner but the actual ingame/test frequencies reset to the gpu boost ceiling?

 

[ngoni615]

That is pretty impressive! What kind of temperatures do you get while benchmarking and playing games? (Also what card do you have?)

I could get 2012MHz on 1.0v, 2020MHz crashed at 1.0v. I could push it up to 2050MHz on default voltage curve for successful benchmarks.

I am buying a new case, should arrive soon. Will have ample room for many radiators and proper airflow direction! I also have my eye on the NZXT X72 for the GPU, maybe then I'll give frequency higher than 2050 a shot!

I am using a Palit super Jetstream 1080ti. card overclocks well but i had to flash the palit gamerock premium 1080ti bios to allow a bit more tdp and power draw. The gamerock bios allows about 58more watts to be pulled. hence why i can hold the clocks. In games i have seen it max out at 65 degrees 1440p ultra. usually it is around 55 to 60degrees. I set up a generous fancurve. at around 60 degrees my fans will be spinning at 65percent then. In games it usually sits around 55degrees to 60degrees then benches push it a bit ... around 65degrees max. I am on air by the way.

 

[ngoni615]

Pardon my ignorance but doesn't GPU Boost 3.0 sortof hardcap the max frequency automatically? It might show +300 in Afterburner but the actual ingame/test frequencies reset to the gpu boost ceiling?

Not really. gpu boost is affected by temperature and power. if you can cool your card enough and give it more power you will be able to do wonders with it. Then it also comes down to luck andf silicon lottery lol

 

[ngoni615]

Okay boys. my final score and i am done moering my card now.