Is 550 W enough for RX 5700 XT

[kiki1911]

Hello guys

 

I have seen that many people say 550 W is enough. Cause the System may draw like 500 W. I typed my parts in PC Partpicker and 473 W was the result.

 

But why do de manufactures like asus or saphire recommend or say its required to have a psu with 600-650 W

[Guest]

It depends on the quality of the power supply, as long as your PSU is A--, A- or A tier than I would trust this system. Otherwise getting a higher wattage and higher tier PSU is the way to go. Here's the tier list for reference: 

 

[kiki1911]

54 minutes ago, Konrad_K said:

It depends on the quality of the power supply, as long as your PSU is A--, A- or A tier than I would trust this system. Otherwise getting a higher wattage and higher tier PSU is the way to go. Here's the tier list for reference: 

 

I found a guy ho asked the same and he bought it with the same psu that i have a b tier psu

 

From his info it puls not even 400w possible? 

[LukeSavenije]

3 minutes ago, kiki1911 said:

From his info it puls not even 400w possible? 

that's indeed very possible. even if PCPP isn't the heaviest overestimator, they still do it

 

but you can calculate for yourself if you want to

 

[kiki1911]

13 minutes ago, LukeSavenije said:

that's indeed very possible. even if PCPP isn't the heaviest overestimator, they still do it

 

but you can calculate for yourself if you want to

 

474 you can see it in my first comment so would you recommend it guys? 

[Juular]

2 hours ago, kiki1911 said:

But why do de manufactures like asus or saphire recommend or say its required to have a psu with 600-650 W

Unclear but probably because in the past there were a lot of group regulated PSUs (or rather there were very few DC-DC ones) which couldn't deliver full rated power at 12V rail which GPU uses. So they still overestimate for that because even now there's quite a few group reg units still sold.

[Vejnemojnen]

7 hours ago, Juular said:

 even now there's quite a few group reg units still sold.

Like 85% of sold PSUs in my country is group regulated. At least it's a guesstimate, based on popularity charts. 

 

Igazából egy szűk rétegen kívül senki sem tudja, mi az, de nem is érdekli őket. Olcsó legyen, azt kész. 

 

Literally a few dozen people are interested in buzzwords. As long as it's cheap and hugely oversized, it's perfect for the majority. 

 

Szomorú, de emiatt vásárol ipari hulladékot a nép raklapszám .

 

550w should be fine. Especially when someone optimizes the voltages. On stock, factory OCd VGA -s are often unnecessarily generous with GPU core voltages 

[Kid.Lazer]

In the for-what-it's-worth department, I'm running a reference blower RX5700 (non-xt) with a Corsair SF450 and it works just fine, even though a 600 watt PSU is recommended.