Question PSU with RTX 2080 DUKE OC and i7 9700K

[boykale]

Hello. I am going to buy a new PSU for my build.

Here are some options that I can buy almost in same price range as there are some discounts. I am also open to your options. I can check them if they are available in my country.

I read some bad reviews about old Corsair RM series especially coil whine issue. Some people claim that while products of Channelwell Technologies are bad, products of Chicony Tech are much better etc. Therefore I have no idea about RMx and RMi series. I need your advice.

Corsair RM750i 750W 80+ Gold
CORSAIR RM850x 850W 80 Plus Gold
SilverStone Strider 750W 80+ Platinum
SilverStone Strider 750W 80+ Gold
FSP Hydro G 850W 80+ Gold
FSP Hydro G 750W 80+ Gold
Cooler Master MasterWatt MWE 750W 80+ Gold
High Power 850W 80+ Gold
High Power 750W 80+ Gold

PC SPEC
GeForce RTX 2080 Duke 8G OC
Intel Core i7-9700K
MSI MPG Z390 Gaming Plus
Gskill 16 GB (2x8GB) SniperX DDR4 3200MHz CL16 1.35V

 

[superninja12]

rm850x

 

[boykale]

rm850x

I just checked rm850x from store. The product code is CP-9020180-EU. I think this is the RM850X v2 which is better than old RM850X.
However, I'm just worried about something. Isn't 850w too much for my spec? I mean I read somewhere that using high watt psu on system that requires less power is not good in terms of efficiency and stability. Is this right?

 

[Notorious^]

850W is more than you need for those specs. Have you looked at EVGA? I run the 750w p2 80+ Platinum PSU.

 

[boykale]

850W is more than you need for those specs. Have you looked at EVGA? I run the 750w p2 80+ Platinum PSU.

Unfortunately, EVGA PSU's are out of stock. The price of Corsair RM750i 750W 80+ Gold and Corsair RM850x 850W 80 Plus Gold are same in different stores and FSP Hydro G PSU'S are 40-50$ expensive than Corair PSU's.

 

[superninja12]

850w is enough for 2 of those 2080s

 

[boykale]

Then I will buy RM850X instead of RM750i as they are at same price.