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Answered3090 Power Limit / Cyberpunk 2077

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DC18V
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2021/01/28 11:52:46 (permalink)
Hi,
When playing Cyberpunk 2077, I've never seen the normalized power usage above 110%, Although it's set to 119% in Precision X1.
 
I this normal? 
What can I do do make sure that the card is using its full potential?
(I'd like to keep temps below 80°C and fans at 70% speed.)
 
Ingame settings 
Preset: RT_Ultra & DLSS_Quality ; 1440p
 
Until today, I was using Precision X1 1.1.4 and with the OC Bios installed from this forum. 
I just installed Precision X1 1.1.6 and it updated the GPU's firmware. (Does this overwrite the OC BIOS ?) 
 

 
EVGA RTX 3090 FTW3 Ultra
Ryzen 9 5950X
2x8 DDR4 3600 CL16
x570 Gigabyte 
 
Four separate PCIe cables for the graphics card.
One of them is plugged into the 6pin auxiliary power connector on the motherboard for the x16 slot. 
 
Bios Settings:
FCLK 1800MHz
PBO enabled
XMP profile enabled
Everything else on Auto
 
 
Would love to hear some advice.
Thanks in advance!

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Sajin
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Re: 3090 Power Limit / Cyberpunk 2077 2021/01/28 23:46:13 (permalink) ☄ Helpfulby DC18V 2021/02/09 04:14:13
Not hitting the pwr limit is a good thing.
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DC18V
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/09 04:10:57 (permalink)
Ok, cool. I was a bit worried because some people in the CP2077 forum seem to experience very low GPU usage (like below 50% constantly). One person said it was caused by ASUS AI suite (which I don't have installed) ...
Anyway, thanks for reply! 
post edited by DC18V - 2021/02/09 04:17:22
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Sajin
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/09 06:15:02 (permalink)
No problem.
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Dabadger84
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/09 23:59:58 (permalink) ☼ Best Answerby DC18V 2021/02/10 19:15:08
Are you running maximum settings, and at what resolution?  You need to keep in mind that actually hitting power limit would make your card downbin in clocks and/or voltage, which would hinder your performance, so it is actually a good thing you're NOT hitting power limit.
 
A perfect example of hitting power limit when you're not even seeing anywhere near the card's actual power limit is in this screenshot:
 

 
Now I'm running at 5120 x 1440 (7.44M pixels, so almost 4K) - and my GPU is set to 2160MHz @ 1068mV (technically stock voltage but it's commanded to stay at the lowest bin of stock voltage, so it's an OC/undervolt, lower power draw, lower temps, faster clocks) & the vRAM is set at +1000MHz - so pretty much full tilt on the card in terms of how high I can go without losing stability or getting artifacts.  As you can see, I'm getting a whoppin' 32fps (settings are absolutely maxed, RT is fully on with the last setting on Psycho, DLSS is on Quality because it just plain looks better than native 95% of the time) - and seeing POWER as a Limiting factor, despite only drawing 423W according to the HWInfo readout, when my power limit slider was maxed, meaning I should have a 520W power limit.
Because of me hitting a power limit somewhere in the card's brain, I'm only hitting 2130MHz in that scene.  Just an example of why you actually don't want to see power limit, when you can avoid it.
Doing an undervolt/overclock can actually net you some nice performance gains, while simultaneously lowering your load temperatures, and power draw.
 
I think the highest draw I've seen so far in Cyberpunk is around the 470W range, with these settings.  Oddly, that did not have a POWER limiting pop up.  Ampere are fickle creatures.

ModRigs: https://www.modsrigs.com/detail.aspx?BuildID=42891  
Specs:
5950x @ 4.7GHz 1.3V - Asus Crosshair VIII Hero - eVGA 1200W P2 - 4x8GB G.Skill Trident Z Royal Silver @ 3800 CL14
Gigabyte RTX 4090 Gaming OC w/ Core: 2850MHz @ 1000mV, Mem: +1500MHz - Samsung Odyssey G9 49" Super-Ultrawide 240Hz Monitor
 
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DC18V
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/10 19:19:51 (permalink)
You can see my settings in this video:
https:   //youtu.be/kbzU0_1-Hv4
 
 
 
post edited by DC18V - 2021/02/10 19:22:34

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FitzFox
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/11 10:41:09 (permalink)
DLSS is the key here - it saves a lot of power. If you turn DLSS off, I suspect you'll find yourself bumping on the power limit fairly fast. DLSS is great for image quality but probably also plays some role in Nvidia's future strategy for power management.
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Dabadger84
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Re: 3090 Power Limit / Cyberpunk 2077 2021/02/11 12:50:47 (permalink)
FitzFox
DLSS is the key here - it saves a lot of power. If you turn DLSS off, I suspect you'll find yourself bumping on the power limit fairly fast. DLSS is great for image quality but probably also plays some role in Nvidia's future strategy for power management.



At my resolution native is completely unplayable, and the power draw is only slightly higher (because of slightly higher vRAM load).

ModRigs: https://www.modsrigs.com/detail.aspx?BuildID=42891  
Specs:
5950x @ 4.7GHz 1.3V - Asus Crosshair VIII Hero - eVGA 1200W P2 - 4x8GB G.Skill Trident Z Royal Silver @ 3800 CL14
Gigabyte RTX 4090 Gaming OC w/ Core: 2850MHz @ 1000mV, Mem: +1500MHz - Samsung Odyssey G9 49" Super-Ultrawide 240Hz Monitor
 
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