bob16314
Go to the and find the card and click on it to see the Requirements..Use the or the more detailed and see what gets coughed up and to see some recommended PSUs..I would think that a 1000W unit would be more than enough.

Juggzz
Hey, I wanted to know if anyone has heard much about the power requirements for the EVGA 3080ti, and which of their PSUs would be recommended. Should 1000w be sufficient with 11900k?

jeriicho
I’m sort of in the same boat. I was hoping that my 750w unit would be enough. Guess I’ll have to figure in the cost of a new PSU when/if I finally get a 3000 series card.

Nike_7688
I would go 1000W (I can back this up because I already did lol). the 11900k can draw 250W at times and the 3080/90 series has some pretty high current spikes. There are a lot of people that had issues with 750W and even 850W power supplies (plenty that worked ok too), but there's a reason that is listed as the minimum size. Most CPUs don't spike as high as the 11900k, especially if you overclock it and don't lock it down to 125W (why would you buy this thing if that was your plan?). There are a lot less people having problems with 3080's and 3090's with 1000W+ PSUs. Still some, yes, but those are generally quality issues and end up with GPU RMAs. EVGA even had to revise their 850W power supply design and RMA them for people so they didn't have issues with 30-series GPUs. That should be a clue. Also, the 3080ti is going to be closer to a 3090 for spikes than a 3080 as it is much closer to that chip under the hood.
 
Beyond setting yourself up for a much more reliable experience, if you look at the efficiency curve of a power supply, there is a very mild argument to be made about efficiency:

As you can see, the most efficient part of the curve is at 50%. You can also see that running at 20% and 75% give you about the same yield for efficiency, but over 75% it drops off more. I've never been a fan of running a PSU over 75% load all the time, and I have occasionally had to factor in folding@home into my usage, which can crank up your power usage quite a bit more than normal loads (when else do you crank up CPU and GPU at the same time for extended periods?), so I wanted that 100% full-system load to never be more than 75% of the PSU's rated max load. If your normal usage is between 25-65% of a PSU's rated load (between idle and normal gaming or normal work-loads), you're in the most efficient area and should have plenty of head-room for those spikes I was talking about before.
 
A wise man named Burt Gummer once said "I'd rather have it and not need it than need it and not have it." Yes, he was a fictional character in a silly movie, but sometimes that adage rings true.
 
finally, the bronze, silver, gold, etc. ratings don't always indicate how "good" or "well rated" a power supply is for various loads. It just indicates that it meets a certain efficiency rating. Generally, the quality of components goes up with most manufacturers the higher that rating is, so having gold/platinum/titanium generally means the PSU is better than a bronze, but having platinum or titanium does not always mean that the supply has better current-spike handling capability and not all golds (or any eff. rating) are made equally. Read reviews. Find a review where they actually opened the thing up, checked build-quality, and did some testing.

Uxbridge7
My 2 cents .. 850 would be ok for 98% of people , I’m running a 2070s +3900 oc’d ,lots of case extras lots lots ... and gaveczero issues with a 750, I recently upgraded to an 850 just for insurance but I think I’m 30 ready? , look at gamers nexus he did great vid on how much power you actually need , very informative