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Hot!3080 Ti XC3 Overclocking/Undervolting & Performance Discussion

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roxhound
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/15 20:32:59 (permalink)
nosomo
roxhound
I met your setting Fkurbanov11.
 
Worked like a champ, but i am stuck under 20k at 19962.
 
Time spy Result ID:  22880118
 
I tried to up  900mV at 1965 +450 on mem, but no dice, 19941.
 
I dont think my Ryzen 3900X is the hold up, so dont know if i will bump over.


It's probably your temp.  He's on hydro copper which means he's likely close to the 50c sweet spot for boosting.  Identical settings doesn't mean the core runs the same.  It will boost higher the cooler the card is. 




Maybe.  I am a Hybrid, temps never above 65 for GPU and 83 for memory.  so... who knows.
 
#61
nosomo
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/15 22:43:01 (permalink)
roxhound
 
 
Maybe.  I am a Hybrid, temps never above 65 for GPU and 83 for memory.  so... who knows.
 


Why are your temps so high?  I have several hybrids including a KP and NONE of the temps get higher than 56c.  The XC3 3080 runs at 50c!


#62
roxhound
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/16 06:59:59 (permalink)
Dont know what to tell you, mine is a 3080ti, and thats the average on the temp.
 
runs like a champ, so not sure what it is.  have good cooling in the case, soooo....
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Paul Anderegg
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/18 15:35:23 (permalink)
I think I reached the limits of my XC3 3080 Ti.  1890 @ 812mv with +536MHz on the memory. If I go up another tick to 1905, it crashes Superposition. If I go down one tick to 806mv, Heaven crashes. With this new memory error correction, would I just drop the memory MHz until my scores and fps go up a tad to tell if I am too far?  I know anything past what I had put in now gives the same scores and begins to drop slightly. 
 
Paul
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speedysloth
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/19 01:01:44 (permalink)
Paul Anderegg
I think I reached the limits of my XC3 3080 Ti.  1890 @ 812mv with +536MHz on the memory. If I go up another tick to 1905, it crashes Superposition. If I go down one tick to 806mv, Heaven crashes. With this new memory error correction, would I just drop the memory MHz until my scores and fps go up a tad to tell if I am too far?  I know anything past what I had put in now gives the same scores and begins to drop slightly. 
 
Paul




What's your current timespy score with those settings?
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Paul Anderegg
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/19 14:49:01 (permalink)
speedysloth
Paul Anderegg
I think I reached the limits of my XC3 3080 Ti.  1890 @ 812mv with +536MHz on the memory. If I go up another tick to 1905, it crashes Superposition. If I go down one tick to 806mv, Heaven crashes. With this new memory error correction, would I just drop the memory MHz until my scores and fps go up a tad to tell if I am too far?  I know anything past what I had put in now gives the same scores and begins to drop slightly. 
 
Paul




What's your current timespy score with those settings?




19772 :(
 
I've also downclocked my memory to +300MHz since anything higher showed no gain.
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03whitegsr
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/19 22:17:09 (permalink)
Not sure if it was in this thread or another, but somebody suggested setting the power limiter on an overclock instead of undervolting. I tried it and found it to be far less stable in games.

Using the same FV curve (+225 OC, capped to 1950MHz@875mV) I can run with the 105% power limit without issue and it pulls right around 250W in Witcher III on Ultra 4K settings. Setting the power limiter to 80% (~270W) will cause it to crash with the same settings. It would crash with a +195OC capped at 1915MHz, after dropping two bins and still having it crash, I gave up on the power limiter.
post edited by 03whitegsr - 2021/09/19 22:25:33
#67
Celeras
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/09/20 19:07:09 (permalink)
Adjusting the power limiter is less effective than undervolting. It's recommended by the lazy and inexperienced because it's easier. And while the goals are the same, it still relies on nVidia's boost algorithm whereas a properly tuned undervolt minimizes it to the extent possible.


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Kasque
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Re: 3080 Ti XC3 Overclocking/Undervolting & Performance Discussion 2021/09/23 07:08:53 (permalink)
yup, you got a good one 
#69
oldmanian
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Re: 3080 Ti XC3 Overclocking/Undervolting & Performance Discussion 2021/09/28 17:06:53 (permalink)
Has anyone noticed that the 3080 TI XC3 Ultra -3955-kr) is gone from the evga site and only the lower spec (boost is listed as lower) XC3 gaming sku is shown as the only air xc3 3080ti card is shown?
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03whitegsr
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Re: 3080 Ti XC3 Overclocking/Undervolting & Performance Discussion 2021/09/28 18:54:25 (permalink)
Not sure it really matters. If I recall correctly, my -3953 with the stock bios (1665MHz boost clock) still hit like 1965MHz peak. It doesn't really have the power/cooling to hold more than 1800MHz under load with the stock settings though.

Makes sense to reserve the "ultra" version for the hybrid and then eliminate the "black" on a premium card like the 3080Ti.
post edited by 03whitegsr - 2021/09/28 18:56:21
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THE Roen
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Re: 3080 Ti XC3 Overclocking/Undervolting & Performance Discussion 2021/10/06 14:22:21 (permalink)
Graphics Score 16,919
CPU Score 8,370
Time Spy Score 14,671
 
8700K 4.7 GHz @ 1.2V
3600-18-22-22-42 RAM
12G-P5-3953-KR 3080 Ti XC3 Gaming +106 Core, +200 Memory, Power Limit 105%, Temp Limit 91
Max power draw per HWiNFO64: 347.289W
VBIOS 94.02.71.80.BF
 
I feel like something's gimped with my system.
 
Clock frequency 1,980 MHz (1,365 MHz)
Average clock frequency 1,776 MHz
Memory clock frequency 1,213 MHz (1,188 MHz)
Average memory clock frequency 1,204 MHz
Average temperature 77 °C
Driver version 30.0.14.7212
post edited by THE Roen - 2021/10/06 14:33:03
#72
THE_Roen
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Re: 3080 Ti XC3 Overclocking/Undervolting & Performance Discussion 2021/10/12 12:39:11 (permalink)
Updated numbers:
18835 Graphics
8068 CPU
15693 Total
 
1905 MHz @ 875 mV
Aggressive Fan Curves


#73
xorxhs
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/10/12 13:19:26 (permalink)
have you undervolt for ethereum mining? 
#74
THE_Roen
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/10/12 13:20:32 (permalink)
No, better temps while gaming.


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xorxhs
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/10/12 13:32:44 (permalink)
THE_Roen
No, better temps while gaming.


whats your PL?
#76
jay789
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/10/23 22:59:27 (permalink)
TimeSpy: 20,501
 
Clock frequency 2,100 MHz (1,365 MHz)
Average clock frequency 1,869 MHz
Memory clock frequency 1,375 MHz (1,188 MHz)
Average memory clock frequency 1,375 MHz
Average temperature 60 °C
Driver version 30.0.14.7212
 
Side Note, I was pulling 340-350watts without a 6 pin pcie supplement going into my motherboard.  With the 6pin into the board, the card peaks around 370w.  Is this common knowledge?  Just assumed that pcie supplement on the board was mainly for SLI.
post edited by jay789 - 2021/10/24 09:16:56
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xorxhs
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Re: 3080 Ti XC3 Overclocking-Undervolting Discussion 2021/10/24 06:15:04 (permalink)
jay789
TimeSpy: 20,501
 
Clock frequency 2,100 MHz (1,365 MHz)
Average clock frequency 1,869 MHz
Memory clock frequency 1,375 MHz (1,188 MHz)
Average memory clock frequency 1,375 MHz
Average temperature 60 °C
Driver version 30.0.14.7212
 
Side Note, I was pulling 340-350watts without a 6 pin pcie supplement going into my motherboard.  With the 6pin into the board, the card peaks around 362w.  Is this common knowledge?  Just assumed that pcie supplement on the board was mainly for SLI.


do the proper connections 1st
#78
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