Hi everyone,

I am currently planning a hardware upgrade and I need some advice on choosing the right 750W power supply.

Here is my target configuration:

• GPU: RTX 5070 Ti (around 300W peak/transients)
• CPU: AMD Ryzen 5 3600X (planning to upgrade soon to a more power-hungry modern CPU)
• Case: Standard ATX case (no strict size limitations)

Energy saving is a top priority for me, so I am looking for a highly efficient unit with a minimum of 80 PLUS Platinum (or Cybenetics Platinum) certification to keep power consumption as low as possible.

My other absolute requirement is acoustics. I want a system that is as silent as possible under both idle and gaming loads.

I am currently torn between two different philosophies from be quiet!, but I am also open to other brands:

• be quiet! Power Zone 2 750W: I love the fact that it is semi-passive (0 RPM / 0 dB at idle) and comes with a 140mm fan, making it potentially the quietest option on paper when not gaming.
• be quiet! Pure Power 13M 750W: It technically hits Platinum efficiency in reviews with superior 28mV ripple filtering and solid caps, but the 120mm fan spins continuously.

How do these two stack up against each other in real-world noise levels? Is the continuous fan of the 13M truly inaudible, or is the 0 RPM mode of the Power Zone 2 better for a dead-silent idle setup?

If you have other top-tier Platinum suggestions like the Seasonic Focus PX-750 ATX 3.0 or Gigabyte AORUS ELITE Platinum 750W, please let me know how they compare regarding noise.

Thanks in advance for your help!