Megasizegpu published a screenshot from the GPU-Z software, which shows a power restriction of 890 watts. The software confirms that the card unlocked the power of the graphic processor up to 890 watts, which is almost twice as much as that of the card. To unlock such power, a special XOC BIOS is needed for extreme acceleration. The user confirms that the ASUS TUF video cards are really working with this BIOS:

This BIOS is usually used during record competitions with liquid nitrogen cooling. Enthusiasts should use the XOC BIOS with graphic cards such as Galax HOF or EVGA Kingpin, both of which are equipped with double 16-pin power connectors.

However, most RTX 3090 Ti cards are limited by one PCIe Gen5 connector, which cannot serve more than 600 W (at least according to specifications), but, as shown below, models such as EVGA FTW3 can consume up to 614 W with this BIOS.

The ASUS TUF model is slightly higher to 615 watts. GPU GA102 alone consumes 496 W:

Various user solutions RTX 3090 Ti are tied to a power of power less than 500 W, but there are exceptions that allow up to 516 W (for example, ROG Strix with liquid cooling):