Do I need to upgrade my PSU?

[DelphinusVyse]

I'm currently running a Ryzen 5 5600x with a GTX1080 and using a Corsair RM750x, but a friend of mine is selling me a MSI RTX3080 Suprim X. Will it work with my current PSU or do I really need to upgrade? PC Part Picker estimates my power usage to be 629w. Full build link below

 

https://pcpartpicker.com/user/DelphinusVyse/saved/nGxmD3

[SEAL62]

A 750 Watt power supply should be just fine for your estimated power consumption.

[EmilTechTips]

Yeah I agree with @SEAL62 the rm750x will work just fine even when overclocking  so you don't need to worry.

[GuiltySpark_]

I'm running a 5800x (PBO) and a 3090 (stock) on Corsair's SF750 PSU and its plenty. My UPS shows 575W being pulled from the wall while gaming with my 3090 at full load and 60W of that is my display.

 

At stock, the 3080 Suprim X is rated for 370W vs my 3090's 350W but I still think you'll be fine.

[DelphinusVyse]

Thanks for the words of reassurance. I had a feeling it would be fine, but I also saw that an 850w PSU was 'recommended' so I wanted a second opinion.