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this post was submitted on 12 Jul 2024
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This is verifiable in manufactures data sheets.
Efficiency at less than 20% and greater than 80% loads isn't great relative to in between those ends.
This is compounded by lower wattage PSUs being more limited with regard to features and benefits.
If you end up with a 650w PSU and your system idles at 80 watts for the bulk of a working day you spend long periods of time in this less efficient window.
We need to see some quality 300w to 600w designs come back onto the market.
Well, it depends on how much you're spending: 80 plus titanium units, for example, are 90% efficient at both ends of the spectrum, which is as good as a 80 plus gold unit at the ideal 50% load.
Of course, they're expensive, and thus maybe not really the best solution since the wasted power is probably never going to add up to the cost of the better PSU, but there is enough of a demand for high and low load efficiency that it's a thing that you could go buy.