A 450w psu would be fine for this build. 400w might even be find although I find the decent lower watt psu's (under 450w) are generally more expensive than the higher wattage ones simply because there are fewer of them around.
So How do i know which power supply will fit in my computer and have the right power cords, or is there a one-size-fits-all?
So any backup on this, i am planning to get it in a month and a half or so. The computer has a 300 currently, and the r7 260x consumes 120 under load, so would 430 be good or should i up it to 500?
So How do i know which power supply will fit in my computer and have the right power cords, or is there a one-size-fits-all?
edit: is this a good one?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182261&Tpk=450 watt modular powersupply
its overpriced, size wise, im not really sure, however, if it is one size fits all (which i doubt) this should be plenty:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026
or:
http://us.ncix.com/products/?usaffiliateid=1000031504&sku=63238&vpn=P1450SX2B9&manufacture=XFX
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