Hello i want to choose from one of this 3 PSU SEASONIC S12III 650 SSR-650GB3 650W VS CORSAIR CV650 VS COOLER MASTER MWE 650 basicly that are best options here in shop could you please advise me one of them i dont have big experience with quality etc. of PSUs .
Where do you need 650w for. You only need 650w with a high end videocard and with that kind of gpu you don't want to cheap out on the PSU. All three PSUs are very low end.
What cpu and gpu are in the system?
You need a better quality PSU, not higher wattage. If you had say something like GTX1660 then these PSUs you've listed would've been okay, but maybe you could've got something with lower wattage but better. With RTX3060 you don't necessarily need 650W either but you definitely need better PSUs than these, maybe look at some 550W options in the same price range. Where you are from ? What's your budget for PSU ?
Yeah, you're not going to find anything better with the budget this tight. If you can't raise it then get a CV650. If you can spare another 10 EUR then look at Corsair CX-550F RGB or Corsair CX 650/750.