80 means 80% efficiency of psu. For example power supply delivers 300W to the system but actually draws 375W from the wall. This means that its efficiency is 375W/300W, which equals 0.8 or 80%. Those additional 75W produce nothing but heat.
your 260w 80+ bronze is 260W typical 85% Efficient PSU (80 PLUS Bronze); ENERGY STAR compliant, Active PFC
basic online calculator recommends 280w psu for i7-9700, GTX 1650S, sata ssd, no optical drive. your monitor does not need power from pc psu. you can run your pc on 260w psu and see how it goes. 260w is good enough for load wattage, which is 50w lower than recommended psu. if you really need psu upgrade, just buy the Dell 360w psu for 5070MT.360W typical 90% Efficient PSU (80 PLUS Gold); ENERGY STAR compliant, Active PFC
redxps630
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April 7th, 2021 08:00
80 means 80% efficiency of psu. For example power supply delivers 300W to the system but actually draws 375W from the wall. This means that its efficiency is 375W/300W, which equals 0.8 or 80%. Those additional 75W produce nothing but heat.
your 260w 80+ bronze is 260W typical 85% Efficient PSU
(80 PLUS Bronze); ENERGY STAR compliant, Active PFC
basic online calculator recommends 280w psu for i7-9700, GTX 1650S, sata ssd, no optical drive. your monitor does not need power from pc psu.
you can run your pc on 260w psu and see how it goes. 260w is good enough for load wattage, which is 50w lower than recommended psu.
if you really need psu upgrade, just buy the Dell 360w psu for 5070MT.360W typical 90% Efficient PSU (80 PLUS Gold); ENERGY STAR compliant, Active PFC