700w

Will be enough for a 3080. As long as you're not using an Intel processor lol

Just take note that it is a dual rail PSU, so when you connect the pcie connectors to the GPU, you will need to use both cables and cannot daisy chain the power connectors.
 
tamzzy said:
Will be enough for a 3080. As long as you're not using an Intel processor lol

Just take note that it is a dual rail PSU, so when you connect the pcie connectors to the GPU, you will need to use both cables and cannot daisy chain the power connectors.
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Any Intel, or just a K series?
As I am running an i5-11400, the 3080 would usually be overkill, but I do want to drive a vr headset sometimes, which I believe would benefit from the 3080.
 
It's overpriced for what it is and only has 672w across it's 12v rails. If you shop around you could get the excellent ADATA XPG Core Reactor 750W for just under £95 with free delivery. It's gold rated, fully modular, has a 10 year warranty and has all of it's 750w available on a single 12v rail. It's a much better PSU than the BeQuiet.

If you want to stick with OCUK then I would go for either the Bitfenix Formula Series 750w (£2 cheaper and 50w more) or increase the budget for the fully modular Corsair RM750 or Phanteks Amp 750 both of which have a 10 year warranty.
 
nlel1975 said:
So I take it you’re going to run a 3070 with it hence why you didn’t go 750W.

EDIT: My bad I see you’re already running a 3080 fe with it.
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The original plan was a 3070, so I bought the 700w before getting a gpu, but as dumb luck would have it I tried several times and couldn't get one, but I got a 3080fe first try. So far so good, but I am being extra careful and vigilant just in case.
 
Andythe Random said:
The original plan was a 3070, so I bought the 700w before getting a gpu, but as dumb luck would have it I tried several times and couldn't get one, but I got a 3080fe first try. So far so good, but I am being extra careful and vigilant just in case.
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Glad it’s working for you but it’s not something to recommend. It’s 750W minimum for 3080/3090.
 
nlel1975 said:
I’ve run your system through the EVGA power meter...

https://www.evga.com/power-meter/

Z590/Z490 Motherboard (doesn’t have B560-I)
I5-10400 (doesn’t have i5-11400)
1x 3080 GPU
1x SSD
0x HDD

It recommends a 750W PSU.
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Online PSU calculators tend to wildly over exaggerate requirements, either because they need to compensate for poor quality power supplies that don't deliver rated power or because they're trying to make you spend more money.
 
Gray2233 said:
Online PSU calculators tend to wildly over exaggerate requirements, either because they need to compensate for poor quality power supplies that don't deliver rated power or because they're trying to make you spend more money.
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That’s very cynical. They recommend 750W because they’re so expensive. Hmmm.
 
nlel1975 said:
That’s very cynical. They recommend 750W because they’re so expensive. Hmmm.
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It's unfortunately often true, they're out to make money as is the nature of business.

https://www.guru3d.com/articles_pages/geforce_rtx_3080_founder_review,7.html

https://www.tomshardware.com/uk/reviews/nvidia-geforce-rtx-3080-review/6

https://www.gamersnexus.net/hwreviews/3618-nvidia-rtx-3080-founders-edition-review-benchmarks

twtk-power-rtx-3080.png


Frankly you'd probably be fine with a good 650W on the average non-overclocked system, although I'd generally recommend going for more headroom if you can.
 
Gray2233 said:
Frankly you'd probably be fine with a good 650W on the average non-overclocked system, although I'd generally recommend going for more headroom if you can.
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The difference in price between a 650W and 750W is like a tenner. If you already own a 650W by all means try it but if buying new it wouldn’t be wise to recommend anything under 750W.
 
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