[SOLVED] Building for future parts

[tomekkplk1]

I'm going to make this short, sweet, and simple.
I'm planning on a big build soon and plan on getting an i9 10900k or amd equivalent as well as a 2080Ti equivalent of the 3xxx series.
What is the lowest psu wattage I need for this?
I was planning on a 1000w titanium psu but seasonic is selling one for $500+ and that is not normal while EVGA has a SuperNOVA G3 for $230 and a GQ for $190. (Both 1000w and Gold)

 

[Hellfire13]

Below chart will be helpful for you to make a decision. Make sure to take a note of the color coding. With the kind of build mentioned above, I wont go below Tier A and 750w...
https://linustechtips.com/main/topic/1116640-psucultists-psu-tier-list/

 

[Phaaze88]

-No one knows how much power the 30 series equivalent to the 2080Ti is going to draw; More? Less? Then, by how much?
-Different models of one gpu will have different degrees of power draw - especially the fancier aftermarket models; they will pull more power than the Nvidia Founders.
-Looking to overclock? Well it's practically nonexistent on the 10900K, unlike its i7 and i5 siblings. On Ryzen 3000, it's an inferior performance tweak - don't know why people insist on the inferior method though...
How does one give an accurate answer for this without 2nd guessing a few unknowns?