need to buy a PSU how many watts do i need for my build

geofelt

Titan
Oct 9, 2006
39,466
20
137,665
7,960
Your GTX1080ti will be perfectly happy with a 650w psu.
The Seasonic is a top quality unit.

That said,
I have no problem overprovisioning a PSU a bit. Say 20%.
It will allow for a stronger future graphics card upgrade.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.
 

MeanMachine41

Admirable
May 8, 2014
3,475
1
8,915
938
The SeaSonic - PRIME Titanium 750W 80+ Titanium Certified Fully-Modular ATX Power Supply is perfect and will be OK for future expansion and Overclocking.
For the extra $20 it's worth the investment
 

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