Power/Electricity question

Daytrader

Daytrader

Daytrader

Soldato
Joined
19 Oct 2002
Posts
4,547
Location
wiltshire
So, is this statement true, if i had a 850w power supply or a 1300w power supply, on exactly the same pc build, lets say a 13900K and a 4090, just because i bought a 1300w power supply for future needs, will both the 850w and 1300w draw exactly the same electricity when running the same pc build ? i mean i wont be paying for 1300w of electricity compared to just 850w of electric ?, guess this is a stupid question to some, but i dont want to be paying for not needed electric if i dont need to, thx
 
pastymuncher said:
A psu will only deliver the power asked of it so no a 1300w psu won't be always drawing 1300w (power draw from the wall would me more than 1300w due to efficiency). A psu will draw more power for a given output depending on it's 80+ rating though. A 80+ White (basic) will draw the most from the wall for a given output while a 80+ Titanium will draw the least for the same power output. Personally I draw the line at 80+ Gold as Platinum and Titanium is too much of a price premium that you would never make up in energy savings to justify the outlay.

The answer to your question is more or less the same providing they are both the same 80+ rating.
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Ok, thx for the reply, i thought as much, just wanted confirmation thou, cheers
 
Yeh ok, what i find weird is, if i do buy a new PS with the 16 pin gpu connector, and use that connector, if i have problems with melting etc on the 4090, i cant claim warranty, as the gpu maker of your choice says, you did not use the supplied cable that came with your gpu, like the cable that comes with a FE for example.
 
Ah, i thought the connector on the psu was being changed also, but i guess it don't really matter, as i have to use 3 of the old pcie connectors anyway, otherwise i loose warranty, makes the new power supply 16 pin connector redundant anyway.
 
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