This is an answer that is hard to answer.
The idle power consumption is 3,5 watts for a 8GB and 2,7 Watts for a 2GB version.
And with stress testing people have measured values around 8-10 Watts for a Pi 5.
Conclusion: It depends on what you have running in the OS, what hardware version you have and what external hardware you have connected (USB(HDMI device).
Little reading that could give you a hint on why your question doesn't have one answer :
https://www.cnx-software.com/2024/08/27/comparison-of-raspberry-pi-5-with-2gb-and-8gb-ram-hardware-benchmarks-and-power-consumption/