Question What PSU would i need for a i9 9900K and a RTX 2080.

[mystic_mul]

Right i'm putting together a PC with the named parts above and i've been told by a few of my friends to go for a 1000w, but upon watching vids of PC builds i've seen people build PC's with a i9 9900K and the ti variation of the RTX 2080 and use a 850w so i'm posting for more insight and help, any help is much appreciated thanks.

 

[WildCard999]

Neither, a high quality 650W would be plenty for that system and overclocking.

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - FOCUS Plus Gold 650 W 80+ Gold Certified Fully-Modular ATX Power Supply ($89.99 @ SuperBiiz)
Total: $89.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-04-19 13:17 EDT-0400

 

[NightHawkRMX]

A 650 watt is the minimum for a 2080ti according to NVIDIA's site, and likely that recommendation is based on a setup with a powerful CPU comparable in power draw to your 9900k. A quality 650 watt will work well with your system, but if you plan on overclocking you could go for 700+ watt. The SeaSonic FOCUS Plus Gold 650 is a very good power supply and all you really need.

 

[mystic_mul]

Thanks lads appreciate the time to reply