We use Nvidia PCAT to measure power draw of the graphics card only, with readings from both the PCIe slot and the PCIe power cables combined into a single figure. We use Resident Evil Village (4K) for this testing.
In terms of power draw, the Gaming OC has increased the TGP from 320W up to 340W here, and that’s the same for both BIOS modes. Even then, we saw a reading of 315W in Resident Evil Village, so that’s still a fair bit below the TGP.