Affordable, efficient and silent powersupply?

[ChiefBigFeather]

Dear Community,

 

I'm looking for a good psu with those criteria:

 

- excellent 50w load efficiency (not tested by many reviewers unfortunately, I don't care much for 80+ ratings as my pc idles 95% of the time)

- quiet operation, semi passive operation is very desirable for lower dust maintenance

- below 80€ price on geizhals.de

- 450w should be sufficient

 

So far, the bitfenix formula gold 450 was my go-to psu. But the tier list say there are issues with gpu transients. Do you have better alternatives?

 

Thanks in advance!

 

[Aereldor]

They have the Be Quiet Pure Power 11s on there. They're very silent, but don't ever run fanless. For that, there's a Seasonic Focus GX - which is also one of the best PSUs on the market...

https://geizhals.de/seasonic-focus-gx-550w-atx-2-4-focus-gx-550-a2119946.html?hloc=at&hloc=de

 

It's 9 euros over your budget though, and everything else is way over.

[Haro]

the tx550m is good, though it's not necessarily the quietest. 

the rm550x or the SP11 550w are silent psu's and are good. 

as for the formula gold, it's a good psu, i don't work with the gpu list, so im not sure what they're referring to in terms of gpu transient, but i would assume they would be talking about gpu's like the v64 (don't quote me on that). but other than that the formula  is good afaik.

[Mateyyy]

Pretty much as good as you can get with your budget:

https://geizhals.de/be-quiet-pure-power-11-cm-500w-atx-2-4-bn297-a1910266.html?hloc=at&hloc=de (there's also a non modular variant, which is slightly cheaper)

 

7 minutes ago, ChiefBigFeather said:

So far, the bitfenix formula gold 450 was my go-to psu. But the tier list say there are issues with gpu transients.

That's not really a problem with any GPU you're going to power with a 450W PSU, especially current-gen (Navi and Turing).

[ChiefBigFeather]

6 minutes ago, Mateyyy said:

Pretty much as good as you can get with your budget:

https://geizhals.de/be-quiet-pure-power-11-cm-500w-atx-2-4-bn297-a1910266.html?hloc=at&hloc=de (there's also a non modular variant, which is slightly cheaper)

 

That's not really a problem with any GPU you're going to power with a 450W PSU, especially current-gen (Navi and Turing).

Thanks for the suggestion! Sadly, the pure power 11's idle efficiency seems to be lower then the formula's

[Mateyyy]

6 minutes ago, ChiefBigFeather said:

Sadly, the pure power 11's idle efficiency seems to be lower then the formula's

Hm, fair enough, I hadn't actually checked the efficiencies of both prior to replying.

That being said, are you sure that you're not overestimating the importance of low power draw efficiency? I mean, I really wouldn't expect it to make a noticeable difference in your power bill.

[ChiefBigFeather]

Well, I just double checked what I said. I can't find a site that reviewed both the pure power 11 and the formula gold, which is unfortunate. It seems like they are in the same efficiency category.

 

It doesn't make much of a difference, but I like to optimize

I also have a trauma from my old oversized 800w psu in my i7 920 rig that drew 120w at idle.

[Guest]

Superflower Leadex III 550W is 82 Euros.

 

https://geizhals.de/super-flower-leadex-iii-gold-schwarz-550w-atx-sf-550f14hg-a2084834.html?hloc=at&hloc=de