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Does a higher watt PSU increase my electric bill?

post #1 of 29
Thread Starter 
let's say a build has a 1000W psu. would this build increase my electric bill vs the same build with a 700W psu?
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post #2 of 29
Only if you USE 1000w.

There will be small differences, due to efficiencies at certain loads. But for the most part, no.
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post #3 of 29
it's not using 1000w all the time. it's just the capability to run 1000w. If you are near capping your 700w, I might be wrong, but I think getting a 1000w would actually increase the efficiency and cost you less
post #4 of 29
It depends. Some PSUs are more efficient at lower % loads from their maximum. What specific PSUs are you looking at? (either way the difference will be small and depend more on how much you use the computer and at what level of load)
post #5 of 29
The only thing that will affect your bill is the efficiency of the PSU. A PSU only draws what it needs.
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post #6 of 29
Make sure the PSU has a efficency rating, 80 Plus certified
post #7 of 29
As everyone else has already said, the wattage of the PSU doesn't matter. What does matter is how much it's actually drawing at any given point and how efficient it is at doing so.
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post #8 of 29
+

It's simply efficiency.

I had an older 1000W PSU, it did the trick, but I knew it wasn't very efficient.
After switching to my X-750, I saved at least 40 Watts all the time,..at Idle & at Load.
~ More than 40 Watts saved, for every second it's On, is real savings .

Again, it's all about efficiency

thumb.gif
+
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post #9 of 29
Thread Starter 
thanks everyone. all got rep'ed

i'm on newegg searching for a PSU and i'm at the search criteria, there's different 80 plus certified's:
80 plus certified
80 plus gold certified
80 plus silver certified
80 plus bronze certified

which saves more electricity?
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post #10 of 29
Quote:
Originally Posted by kink;12388446 
+

It's simply efficiency.

I had an older 1000W PSU, it did the trick, but I knew it wasn't very efficient.
After switching to my X-750, I saved at least 40 Watts all the time,..at Idle & at Load.
~ More than 40 Watts saved, for every second it's On, is real savings .

Again, it's all about efficiency

thumb.gif

And yet you'd actually get better efficiency by going with less than that even wink.gif. Your rig would run beautifully off around 350-380w.
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Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
MonitorKeyboardPowerCase
Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
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Logitech G602 Yardsale Special 
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60GB Kingston SSD 1TB Seagate Samsung DVDRW CoolerMaster Gemin II 
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Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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