be quiet! Dark Power Pro 13 1600W Power Supply Review

Efficiency largely looks great here, with the titanium specifications at 90/94/96/91 at 10/20/50/100 loads, and it seems we’re right on the money for that here. Titanium is the highest efficiency level available right now, so it means the PSU will be wasting less power from the wall to meet your system needs. 500W drawn from the mains would result in around 475W output to the system. Something with just 85% efficiency would need to use 588W from the wall to do the same, thus saving you money on your electric bill.

Efficiency

PFC is excellent, and the closer to 1.0 the better, but combined with the efficiency and quality components the PSU is able to keep a very stable output throughout the full range of loads.

PFC (Power Factor Correction)

Voltage Regulation

Voltage regulation is excellent too, with a very small percentage deviation on the 12V rails. The -12V is out by 2.27%, but don’t worry that’s normal and not actually that important in terms of stability, and the same is true of the 3.3V with modern motherboards and components typically drawing from the 12V and generating their own 3.3 and 5V signals from there. Overall though, I wouldn’t be surprised if these are some of the absolute best results we see in a modern PSU.