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How are people with 3000 series cards faring with PSU usage?

Associate
Joined
14 Jul 2005
Posts
568
Only had a few hours with my 3090 but so far, so good with my Corsair 650w PSU. I've run quite a few games, synthetic tests and 30 mins of Furmark and no problems at all. It's still at stock and I have a 3700x which is just using PBO so I guess I'm being careful not to overload on the power.

I think if you have a good quality 650/750w PSU you should be fine, unless you go over the top with other components drawing a lot of power.
 
Associate
Joined
24 Apr 2019
Posts
52
Only had a few hours with my 3090 but so far, so good with my Corsair 650w PSU. I've run quite a few games, synthetic tests and 30 mins of Furmark and no problems at all. It's still at stock and I have a 3700x which is just using PBO so I guess I'm being careful not to overload on the power.

I think if you have a good quality 650/750w PSU you should be fine, unless you go over the top with other components drawing a lot of power.

Promising results. Which PSU model if I may ask?
 
Associate
Joined
18 Sep 2020
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3
I've got a ryzen 5800x and gigabyte 3080 oc, had a corsair rm750 and it was doing fine, been playing control at max settings for like 2 hours a day, 2 hours of vr gaming as well and it was fine. One night I left it running to download some games, went to play control after it had been on 15 hours and it turned off on its own.

I then decided just to fork out for a RM850X and while waiting for it the pc didn't suffer any unexpected shut downs though so whether it was really necessary I don't know
 
Associate
Joined
20 Jun 2013
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1,830
Running an 10700k at 5ghz oc, and split gamerock 3090, on an 5yr old 850W psu.
Was gaming and benching the 3090 all night.. not a problem.. so far.
 
Soldato
Joined
25 May 2013
Posts
10,099
Location
Kent.
2700X/16GB RAM/Gigabyte Gaming 3080 on a Super Flower Leadex Gold 650w 1st gen. Seems fine so far, did have one hang which eventually rebooted the PC but no idea what that was. What's the best/easiest way to measure power draw? Ideally when gaming to get some load going.
 
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20 Jun 2013
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1,830
I run GPU-z set the sensors to give you the read outs. Will even show your 8 pin power draw for each and your board power
 
Associate
Joined
14 Mar 2003
Posts
907
I'm using an overclocked 6700k and 3080 with a Cougar gold 650w PSU. Using a watt meter at the mains I get 420 - 460w running around AC Valhalla. Undervolting to 0.825v cuts it by about 100w.
 
Associate
Joined
2 Nov 2009
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2,426
Location
Brum
2700X/16GB RAM/Gigabyte Gaming 3080 on a Super Flower Leadex Gold 650w 1st gen. Seems fine so far, did have one hang which eventually rebooted the PC but no idea what that was. What's the best/easiest way to measure power draw? Ideally when gaming to get some load going.

I've just taken current readings from the mains input to my system (GTX1070 + R5 3600)

Win10 Desktop 126w

Prime95 169w

Heaven Benchmark 259w

Furmark stress test 363w

These are the highest readings I saw after a few minutes of each test.

GTX1070 is rated at ~150w. The elusive RTX3080 is ~320w. If I assume the 3080 uses 200w more than my 1070, my highest power load would be around 560w. I think my 650w PSU would cope fairly well.
 
Soldato
Joined
17 Jul 2010
Posts
22,256
Interesting thread. I’m planning on a 5x00x, maybe even a 5950x along with a 3080, ideally a Gigabyte Vision. I picked up a superflower Leadex 650W Gold but also have a Seasonic 750W in my current PC so was going to swap them over. Maybe I won’t have to. It will also have 1 NVME, 1 SATA SSD, one mechanical hard drive, an Arctic freezer 2 240mm and six Lian Li Uni fans. No case RGB.
 
Soldato
Joined
26 May 2014
Posts
2,694
My 750W EVGA Supernova G2 (Super Flower OEM) seems up to the task of a 3080. Been testing it for a couple of hours and haven't had any issues in games or benchmarks, even with the power limit raised to 115%. That's paired with a 10600K overclocked to 5GHz at 1.35V.
 
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