Not sure about my psu amd gpu

Hi guys this is my first custom pc and I have a corsair tx650 80+ psu my gpu which is the vapor-x r9 280x will hopefully be arriving tmr if not the next 3 days. This gpu requires 2x8 pin connectors and my psu has it but my questions are if I connect both will it perfom better than 1 connected instead of 2? Will 2 connectors increase the power consuption? Will it even power up if I only connect 1? Because im afraid that if I plug in both the wattage might be over my house circuit limit and blacksouts. Any help would be appreciated thanks! :)
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  1. Best answer
    cards are designed in mind to use all connectors that are connected to it. yes it draws out more energy because its energy it needs in order to work properly
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