If the CPU is overclocked: no
If it's running at stock: maybe
Your power consumption is something like this:
CPU: 130-200W
GPU: 320W
Others: ~100W
That'd make the full power draw of you're system around 550+W (if not overclocked) and around 650W if overclocked. And it's best to choose a PSU rated 100-150W more than your requirements.
If you haven't overclocked, you can try running the 3080. If it works fine, go with it. And if it doesn't, change the PSU.
And if you've overclocked, getting a better PSU should be considered.
Prospective GeForce RTX 30 Series owners may need to spend additional money on a bigger power supply.
www.thefpsreview.com
Nvidia recommends 750W or more.
Summary: Keep in mind that you might have to buy a new PSU. So keep it's cost also under consideration.