Old PSU strong enough?

Nov 15, 2018
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Hi, I wanted to ask if 650W Evga SuperNova G3 is enough for this setup.

RTX 2080 Duke OC
8700K
2x 8 GB DDR4
5x Fan
1x SSD, 1x HDD, few USBs in use

I am upgrading from 1070 to 2080 and not sure if this power supply is enough, or whether I need to upgrade my PSU as well. I tried calculating it myself but not sure whether I put in boost clocks for CPU/GPU or base clocks so I'm turning to you for help before I blew my setup. Beside software OC from MSI ( the utility where you swap between normal/gaming/OC mode for GPU) I don't plan to OC.