Question 1000W good enough for 5090 ?

[SydneyAngel]

Build in my sig.

THe highest i have seen is 600 watts playing BF 2042. So in theory i should add 275 watts on to that which is 875 with a head room of 125. Is that enough ?

 

[Lutfij]

Build in my sig.
Sig space specs can and will change over time and when that happens this thread and it's relevant suggestions are going to be rendered moot to the end user in the same boat as you're in now.

Please mention the make and model of your PSU that you have to work with. Include it's age since an aged unit will not output the same amount of power due to internal wear and tear.

NVIDIA GeForce RTX 5090 Specs

NVIDIA GB202, 2407 MHz, 21760 Cores, 680 TMUs, 176 ROPs, 32768 MB GDDR7, 1750 MHz, 512 bit

www.techpowerup.com

Would say you need at least a 950W PSUY but you should add more to that for headroom, so a 1.2KW would be a good wattage to look at, IMHO.

 

[Gaidax]

Build in my sig.

THe highest i have seen is 600 watts playing BF 2042. So in theory i should add 275 watts on to that which is 875 with a head room of 125. Is that enough ?

If you read the reviews - there are cases when the card can pull 640w too, and partner boards went as far as 730w! The 575/600w is not the actual hard limit for it.

Now, these are the most extreme cases, likelihood you'd just stumble on that case is not great, but it could happen.

If you have the $$ to buy 5090, you most definitely want to invest into 1500w PSU or more, that's like peanuts in comparison and who knows what kind of GPUs we will have 2 gens from now when you might get another urge.

 

[SydneyAngel]

14700K
Z790-E Strix
6400 DDR5 Renagade Kingston
ROG 1000 Thor Plat 2
4070ti Super Tuff OC

Also my PSU is less then 5 monthjs old