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How much electricity will my gaming pc use ?

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  • Gaming
  • Power
  • Components
Last response: in Components
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December 8, 2013 6:27:31 PM

So before i bought my PSU my dad noted that its a 750 w PSU and he is wondering how much my setup will affect the power bill. Is a PSU always drawing 750w of power or does it run at a % of maximum load depending on what you doing on you computer.

PCPartPicker part list: http://pcpartpicker.com/p/2hmmB
Price breakdown by merchant: http://pcpartpicker.com/p/2hmmB/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2hmmB/benchmarks/

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($224.98 @ OutletPC)
Motherboard: ASRock Z87 Extreme4 ATX LGA1150 Motherboard ($117.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($82.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: Asus GeForce GTX 770 2GB Video Card ($335.30 @ SuperBiiz)
Case: Rosewill THOR V2-W ATX Full Tower Case ($124.99 @ Newegg)
Power Supply: EVGA SuperNOVA NEX750B BRONZE 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($60.98 @ Newegg)
Other: rosewill RNX-N250PCe ($15.00)
Total: $1022.21
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-08 21:24 EST-0500)

So how much electricity will it draw at say 50% load ( pcpartpicker says my setup will draw 413w of power ) and how much would it use if it ran for like 24hours.
Thanks in advance. :) 

More about : electricity gaming

a b 4 Gaming
December 8, 2013 6:30:33 PM

The actual power draw at any given time depends on the load of the PC. When the PC is idle it will draw a baseline amount of power and it will use the maximum when pushed to the max by a high intensity program like a game.

The actual draw at the wall outlet will be slightly higher than the actual use of the PC because of some losses in the PSU (depending on the efficiency rating of the PSU), also
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December 8, 2013 6:32:45 PM

So at 50% of the gpu and cpu load it will draw 375w?
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a b 4 Gaming
December 8, 2013 6:34:20 PM

The load is determined by the innards of the PC, not the PSU. If your max load is 413W (the estimate from pcpartpicker) then 50% comes to about 207W
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December 8, 2013 6:44:47 PM

So is the psu a bit much? But i plan to overclock and or SLI
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a b 4 Gaming
December 8, 2013 6:47:42 PM

typical setup eats up around 300-400w, that is with a single (good) gpu already (monitor not included)

your gpu is ok, esp if you plan to get 2 gpu's in the future. and PSU's tend to have max efficiency @50% load, so if you ask me its ok
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December 8, 2013 6:53:53 PM

So at 50% of cpu and gpu it uses 207w so thats like 13% of the psu capacity so the psu would draw 207w of power so how much electricity would it use in a day ( 24 hrs ) and how much would it cost?
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a b 4 Gaming
December 8, 2013 6:59:43 PM

If we assume it's 200 W over a day, it's 200Wx24h=4800Wh. The cost depends on the price of electricity in your area, but it's usually in the ballpark of 20 cents per KWh (1KWh=1000Wh). That's $0.96 per day

That assumes you're at full load for half the day, which is quite a bit of course. If you shut off the PC when not in use it will be less.
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