How many wattage do I need for my PSU?

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gummybear_qc

gummybear_qc

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Mar 23, 2011
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Hello, I chose a 750w power supply but I'm pretty sure I can have less wattage. Here is my planned rig
GPU: MSI Geforce Gtx 770 twin frozr
CPU: Intel core i5-4670k, yes I plan to overclock
Memory: 2x4 vengeance corsair 1600mhz cl7
1 mechanical hard drive, 1 NZXT HUE, 1 DVD writer reader,
 
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Geekkid

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Dec 31, 2012
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A 550W PSU would probably work for you, however there are a couple advantages to having a larger PSU. First of all, having a larger PSU allows you to potentially drop another card in later without any problems for SLi. Also, power supplies are typically more efficient around 50-60% load so having a 750 watt PSU is going to draw less power from the wall than a 550w will providing they are of similar build quality.
 
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oczdude8

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Oct 18, 2009
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yes, explained perfectly. Just to add, since there is less load on the psu, it will last you longer.
 
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