I have an AMD 5800x (so exactly the same CPU) with a mild over clock, 7900xt and an 850w power supply and have absolutely no issues, you do not need a 1000w power supply.......
Edit: oh, and it's roughly a 15 year old Corsair HX 850.
	
		
			
		
		
	
				
			Edit: oh, and it's roughly a 15 year old Corsair HX 850.
			
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