Power Supply Calculator - Select computer parts and our online PSU calculator will calculate the required power supply wattage and amperage for your PC.
outervision.com
As to the difference running a 2060 Super or a RX 590 on a +Bronze verse Gold + it works out like this... gaming 4 hours per day on .18 cents p/kWh.
Now either system really only start need of 400W PSU minimum
The 2060 Super: is $
99.37 /year on the 80+ Bronze verses the Gold + at $94.60. That difference is $4.77 a year.
With a RX 590: is $103.95 /year on the 80+ Bronze verses the Gold + at $
98.92 That difference is $5.03 a year.
Now while in this work-up a RX 590/Gold+ is showing it saves .45 cent /year... IDK I don't think that difference is wroth worry either way.
This Power Supply is just
$46! That's on a $10 Rebate and with $6 shipping.
Buy EVGA 500 GD 100-GD-0500-V1 500 W ATX12V / EPS12V 80 PLUS GOLD Certified Non-Modular Active PFC Power Supply with fast shipping and top-rated customer service. Once you know, you Newegg!
www.newegg.com
I think it's better to pay $25 less for a Gold+ PSU, not shell out $60 (25%) for a 2060 Super for about 5-6% better performance, while then use all that saved to add $15 to double the amount of ram and faster spec, and pocket the $
70. Better yet that goes to fund approximately 35% of many 27" FreeSync 1440P nowadays.