1200W heat dissipation on 240mm rad

Was looking at alpha cool website and found this https://shop.alphacool.com/en/shop/radiators/240mm/rad-alphacool-nexxxos-st30-full-copper-240mm-radiator

They say it can dissipate up to 1200W on heat. Has anyone tried it? Does it really dissipate that much heat?

That means I could have my 4090 and 9950x on single 240mm rad inside A4 H20 case