Power consumed by PC - 250-380W
Mac Studio: 60W (lol)
This is very low for a Intel Core i9-12900K + RTX 3090 combo. I have a custom EKWB water-cooled system myself running Intel Core i9-12900K + Asus GeForce RTX 3090 Strix OC on a Asus Z690 Maximus Hero motherboard.
By default, the Asus motherboard allows for the CPU to go crazy with it's power drain. It pretty much removes Intel's built-in 241W power limit and lets my cooling capacity be the limiting factor. It's more or less the same with the graphics card, the Asus GPU BIOS allows my RTX 3090 to go to 480W unless I'm running into temperature limits.
My system under load is like 800W, and that's without me doing any kind of manual overclocking. All I've done is enabling XMPII profile on my G.Skill 5600MHz DDR5 RAM kit.
Great performing system, awesome for gaming. But efficiency when compared to the Apple M1 Max and M1 Ultra is a complete joke. The M1 Ultra is doing fairly well compared to the 12900K, but it's uses like 6x less power. The GPU is not really on RTX 3090 levels of performance but considering it's using like 7x less power it's darn impressive. When opting for 4TB+ internal storage both sequential read/writes and random read/writes seems to outperform the Samsung 980 Pro 2TB NVMe I have in my desktop as well. Truly impressive, and my desktop is like 15x the size.