Planning on a 7900XTX. Connecting to PSU and cable help needed.

I’ve just built a new PC, and I will be finishing it with the GPU. A 7900XTX to be exact.

Be Quiet Straight Power 12 - 1500W Ryzen 9950X

Since this PSU is ATX 3.0, platinum certified at 1500W, is the 600W cable a no-no or is it possible to get a extension from the provided 600W cable to a 2x/3x 8-pin from cablemod etc?

Or is 2x pci-e with daisy chain the only «safe» option?

Sorry for another duplicate post but it’s confusing to filter out replies when half or more are based on insufficient wattage or off-brand cables