Manufacturer Recommended PSU Accuracy

[Max1996LTT]

The ASUS website has 850W listed for the recommended PSU for use with the Arez RX560 4G EVO card. How accurate are recommendations like this?

[Fasauceome]

14 minutes ago, Max1996LTT said:

The ASUS website has 850W listed for the recommended PSU for use with the Arez RX560 4G EVO card

Haha what

 

The 560 draws less than 100 watts, so unless you're running a dual overclocked epyc workstation you'd never need anything close to 850 watts when using an RX 560

 

My rule of thumb is that almost any system with a single GPU can run on a 550 watt power supply with room to spare for overclocking, barring exceptions in the extreme

[Max1996LTT]

5 minutes ago, Fasauceome said:

Haha what

 

The 560 draws less than 100 watts, so unless you're running a dual overclocked epyc workstation you'd never need anything close to 850 watts when using an RX 560

 

My rule of thumb is that almost any system with a single GPU can run on a 550 watt power supply with room to spare for overclocking, barring exceptions in the extreme

It did sound ridiculous to me too, but it wouldn't hurt to make sure.

[tech.guru]

24 minutes ago, Max1996LTT said:

The ASUS website has 850W listed for the recommended PSU for use with the Arez RX560 4G EVO card. How accurate are recommendations like this?

its not, the video card draws power on the 12 Volt rail.

look at how much power is available on the 12V rail and the max wattage of the video card.

 

the TDP for that card is 65watts,

all things considered it would be 350 watts recommended not 850 watts.

 

i would look at the chart on your powersupply see if its a single rail.

if its a single rail add up all components power consumption.

 

then also look at efficiency rating at differ levels. you may want a larger power supply to have greater efficiency and save electricity costs. if they are certified cost savings will be minimal but cheaper psu can have very poor efficiency levels when you reach near max load