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What Wattage Psu Do I Need For My Setup?

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What Wattage Psu Do I Need For My Setup?

Postby Megedagik » Sun Sep 24, 2017 11:13 pm

I've wanted to do a second pc build for sometime now so ive decided what to get in terms of spec

this is the hardware:

intel core i7-3770k 4x 3.50ghz ivy bridge

asus p8z77-v lx ATX motherboard

corsair vengance ddr3 ram

evga geforce gtx 660 SC 2gb ddr5

seagate 3.5 inch sata HDD at 7200 rpm

asus intenal sata dvd drive

and the casing is:

aerocool rs-9 devel gamers case

all i want to know what whatage is needed to power it and also if its a good gaming pc

thanks
Megedagik
 
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What Wattage Psu Do I Need For My Setup?

Postby Mac » Mon Sep 25, 2017 7:31 am

750w should be more than enough but 650 may be to low. PSUs are a cheap component any way so it is a good idea to get a 750w but if the buget is smaller go for a 650 or 700w
Mac
 
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What Wattage Psu Do I Need For My Setup?

Postby Adken » Mon Sep 25, 2017 10:20 am

600 watts is plenty.


If you want to cover the possibility of an SLI upgrade in the future, then you'd want a 700-750W unit.
Otherwise there's no need to go that high.

Technically you'd be fine with 520-550W but you want to some breathing room to allow for PSU output decline over time, and possible future upgrades.

The baseline requirement for a system with a standard GTX 660 is 450 watts. http://www.geforce.com/hardware/desktop-...
Adken
 
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What Wattage Psu Do I Need For My Setup?

Postby Carthach » Tue Sep 26, 2017 10:15 pm

As a general rule ...find the minimum required wattage listed with the video card...then add 20%...in your case the GTX 660 needs 450W...then add 20% which is 540W or 550W
Carthach
 
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What Wattage Psu Do I Need For My Setup?

Postby Griffen » Wed Sep 27, 2017 5:05 pm

Around 700Watts. The card has a TDP of 170W and CPU at 77W, so on full load your only drawing about 450W of the 12V rail(s).
Griffen
 
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