P3X979

I appreciate the help. I was using different Power Supply calculators and they were giving me different numbers: from 430W to 595W. I'm pretty sure they are all designed to sell you power supplies. I figured I'd ask people with real world experience. Thanks.

I recently upgraded from a Ryzen 1600 & 1050ti to a Ryzen 2700x and 1080ti. The EVGA 1080ti came with a Free EVGA 650W G2 80+ Gold Power Supply. I am currently using a 750W Rosewill 80+ Bronze PSU from a build I did in 2014. My set up is as follows: CPU: AMD Ryzen 7 2700x GPU: EVGA GTX Geforce 1080 ti Mobo: MSI B350M Gaming Pro RAM: Corsair Vengeance 3200 MHz 2 x 16GB SDD: Western Digital Blue 250GB HDD: Western Digital Blue 1TB 7200RPM PSU: Rosewill ARC 750W 80 Plus Bronze My question is would it be better to run with the new "Gold" 650W or keep using the four year old "Bronze" 750W? I understand that EVGA G2 Series is a higher tier product than Rosewill ARC Series. How many watts do I really need with this system? I don't game, but will be using this computer for Data Science/Machine Learning projects, so GPU and CPU will see use. I don't plan on overclocking the CPU or GPU. Thanks