Is 450W PSU enough?

[MasonFereday]

Hey everyone,

I am building a new PC in a microITX case so I had to get all new parts and I'm not sure if this is gonna cut it. Someone recommended that I use a 450W psu for these parts, and the PC Part Picker estimated wattage is only 339 W with a 1070Ti. I'm trying to keep costs down, but I also don't want to take any chances. I have everything finalized besides GPU, which will probably be a 1070Ti but I may go to either a 1070 or 1080 instead. Here are the other parts:

https://pcpartpicker.com/list/dcrWKB

Thanks!

 

[InvalidError]

340W sounds about right for peak power but you don't want to use a PSU that will be at close to 100% load during peaks. Going at least one common size up from 350W makes sense as it gives you more headroom for component aging so your computer doesn't start acting up the moment the PSU becomes less than fresh-out-of-box quality.