power supply What Power Supply do I use???

[kaisteinke]

Hello, I am building a PC. I do  not know what Power Supply I should use. My PC will be needing 459 Watts but should I get a 500W one or a 650W or an 850?? Does this really matter or should I just choose a random 500W? Thank You.

[GoldenLag]

what are your components?

what is your budget?

what is your location?

 

also, never choose random PSUs as there are many bad PSUs out there, even from reputable brands

[Domifi]

This thread might better be suited in the "Cases and Power Supplies" category. But apart from that, here are two pinned threads from that category:

 

[Chronified]

Get a 650w or 700w so you have room for upgrades in the future. If you choose a PSU with the wattage of your current config you're pretty much locking yourself down to that being the first upgrade before you get a new CPU/GPU in the future. 

[Type 2501]

IMO a good 650w is well above most would need in a single GPU system. 

Could you let us know the spec you are going to need the psu for?

 

I would rather get a good quality psu with enough wattage, than a crap one with all the wattage you don't need.

[Stefan Payne]

4 hours ago, Chronified said:

Get a 650w or 700w so you have room for upgrades in the future. If you choose a PSU with the wattage of your current config you're pretty much locking yourself down to that being the first upgrade before you get a new CPU/GPU in the future. 

That's utter nonsense.

There is absolutely no reason why you should need 650 or 700W in the Future and a better quality PSU is preferabely (ie 450 or 550W Bitfenix Formula) over a shitty 700W one (ie Thermaltake Smart RGB), especially since the 450/550W is more expensive.

 

So pls stop saying such nonsense, when you do not know what the future will bring.

Especially since people like JonnyGURU himself are saying that there might be some big changes in a year or two that will render most modern PSU completely useless (new power saving shit)...

5 hours ago, kaisteinke said:

Hello, I am building a PC. I do  not know what Power Supply I should use. My PC will be needing 459 Watts but should I get a 500W one or a 650W or an 850?? Does this really matter or should I just choose a random 500W? Thank You.

You should get a good one.

And if you claim "will be needing 459W", you mean according to some bullshit Online Software that overestimates by a mile because they make more money with more watt??

 

Because a normal PC is more in the 300-400W range - getting over that is rather hard (and expensive). So a good 550W is more than sufficient, since there are no good 500W ones...

 

A high quality PSU is more important than the wattage ie having a be quiet Straight Power 11 with 550W than some cheap shit with "700W"...

[Type 2501]

15 hours ago, Stefan Payne said:

And if you claim "will be needing 459W", you mean according to some bullshit Online Software that overestimates by a mile because they make more money with more watt??

I really agree that most system don't really go over 500w, I had built power hungry system like FX 8370 paired with the R9 fury. Which only draw above 400w with synthetic load.  And most gaming pc use much less power than that. 

 

So I am very curious how OP gets the 459w number.

[peacefulpolarbear]

4 minutes ago, Type 2501 said:

I really agree that most system don't really go over 500w, I had built power hungry system like FX 8370 paired with the R9 fury. Which only draw above 400w with synthetic load.  And most gaming pc use much less power than that. 

 

So I am very curious how OP gets the 459w number.

Probably used an online calculator