Question Do I need more watts for a 2070 super?

Bobbeh21

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Dec 29, 2013
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Hello, I’m working on a build and I just received a EVGA 2070 SUPER that I want to install.
Motherboard:Mpg Z390 gaming plus
CPU:I7-9700k
PowerSupply:650watts
RAM:16
My last gpu was a 1070 and I only have the 8pin connected to the 2070. Do I need a 750watt power supply or should I buy a 6 to 8 pin PCIe cable?
 
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