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Time Spy Standard DX 12 Bench.

I'm doing some unvervolt testing on the Strix 3090

875mv capped, 19.7k graphics score. Average power draw: 350w.
Thats a 6.5% score loss compared to my best of 21k and a saving of 60w (17% saving), also a 10c reudction in temps

https://www.3dmark.com/3dm/55681985?


update 1

825mv capped, 19468 graphics score. Average power draw: 310w.
Thats a 8.2% score loss compared to my best of 21k and a saving of 100w (25% saving)

https://www.3dmark.com/3dm/55682507?

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update 2:

This is going to be about my best: https://www.3dmark.com/3dm/55686453?

19732 graphics score @ 825mv cap. Power draw 310w.
Thats a 100w (25%) power saving for just 6.4% performance loss.



I tried to see if I could maintain my best score of 21k or something close to it while dropping voltage but this card just can't stay stable - with my overclock it reaches 1.06v and to get any meaningful power draw reduction I found I need no more than 0.85v and it just can't maintain those clocks with 0.85v. So with that in mind, the best results are seen when also reducing the boost clocks with voltage - since these Ampere cards are clocked over their peak effiency out of the box, power draw comes down much faster than performance does.
 
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And then just for lols, took the side panel off the case and opened the room windows and maxed the power slider - it only helped a tiny bit

5950x PBO
3600mhz CL14 ram
Strix RTX3090 @ 1966mhz average core and 1248mhz memory

overall score:20 074
graphics score: 21 201
cpu score: 15 429

https://www.3dmark.com/3dm/55688407?
 
LtMatt said:
Seasonic 650W Plat that trips unless I undervolt from 1.175v to 1.100v.. Got a HX1000W Plat on the way.
Click to expand...


The amount of tripping psu posts this generation is amazing IMO, never seen this before. Psu makers must be killing it, the store I shop at is out of stock of any psu model over 650w and ordering any has an eta of 6+weeks
 
Grim5 said:
The amount of tripping psu posts this generation is amazing IMO, never seen this before. Psu makers must be killing it, the store I shop at is out of stock of any psu model over 650w and ordering any has an eta of 6+weeks
Click to expand...
The recommended PSU specs for the 6900 XT is 850W, so it's not too surprising i guess.

Given the 6800 XT ran without any issue though, it was still a surprise to me to have it trip without undervolting.

The 650W had a 12v rail of 54A, and i guess that is not enough probably need at least 62A and preferably 70A or higher.
 
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