OTOY Forums

Hi everyone,

I have a very good (Alienware) 850w psu and am looking to replace 2 x 1080 with 2 x 2080 TI.
Do you think it is enough or should I upgrade my psu before swapping the cards ?

Thanks

2080Ti has TDP of 260W and 1080Ti has 180W TDP so your difference will be 520W vs 360W (that's at peak but i find often that Octane is not using full TDP of GPUs but slightly less like 250W GPUs (liek 1080Ti) used 215-225W accordign to my measurments on UPS)

You should be fine. My 3 1080 Tis pulling 450W according to my PSU read out on full load.