Seasonic Prime PX-1600 ATX v3.0 PSU Review

Average Noise

The PX-1600 is away from the TX-1600 in terms of overall noise output, so noise output is priority one for you, the TX-1600 should be preferred.

Fan Noise & Speed Maps @ 28-32 °C

Because of the load pattern that I applied, the semi-passive operation didn’t last long, but thanks to the super-relaxed fan speed profile, noise output is minimized at up to 1000W loads. This applies to the TX-1600, too. The difference in noise output between the TX and PX 1600 units is above the 100oW load level. While the TX-1600 doesn’t exceed 25 dBA with up to 1300W loads, the PX-1600 exceeds 25 dBA at 1190W. Moreover, the TX-1600 enters the 30-35 dBA zone at around 1480W, while this happens to the PX-1600 at 1290W. Lastly, the PX-1600 goes over 35 dBA at 1400W and over 40 dBA at around 1530W, while the TX-1600 doesn’t exceed 35 dBA in the same tests.

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4 thoughts on “Seasonic Prime PX-1600 ATX v3.0 PSU Review

  1. Very extensive review. I have the old Prime PX-1300 that has the 12v sense defect. I disconnected the wire and the PSU hasn’t turned off abnormally since when overclocking my 7900 XTX. My next PSU will definitely be ATX 3.0-compatible but I don’t think I need a new one, especially considering the limited choices now. I hope Corsair will update the AX1600i soon but I bet it will cost an arm and a leg.

  2. Hi crmaris, thanks for your reviews on the TX & this PX, awesome job.

    Are these cons significant enough to deter someone like yourself from buying one?
    Have you tested/reviewed a better high end alternative or more simply, which PSU in the 1300W+ category would be your go to right now?

    1. Hi! So far there isn’t any better choice in the ATX v3.0 and >1500W capacity. I haven’t tested something better. The Corsair AX1600i has higher overall performance but it isn’t ATX v3.0 compatible

  3. Ok, thanks for replying crmaris. I’ve had good experience with Seasonic so far & their Prime range so I’ll stick with them, thanks again for your time & in-depth reviews.

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