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NZXT C Series 750W Power Supply Review

Good performance, but the fan profile could be more relaxed.

NZXT C750
(Image: © NZXT)

With the C750, we finished our evaluation of the complete NZXT C series. Like the other two models of the line, the C750 meets the competition eye-to-eye thanks to the good Seasonic platform that it uses. Although it cannot exceed the competition's performance, which is fierce in this category, still the overall package is appealing. Moreover, NZXT was wise enough to offer dual EPS connectors in the new C750 and C650 models, making them compatible with all high-end CPUs and mainboards.

(Image credit: Tom's Hardware)

The main downside of the C750 is the aggressive fan speed profile, at increased loads and operating temperatures. This is a problem for the Seasonic Focus Plus Gold 750W as well, which uses the same platform. As it seems, larger heat sinks are required to loosen up the fan profile, something that Asus did in its ROG Strix 750W model. Another option would be to use higher quality primary switching FETs, but this would notably affect production cost. We have seen this in the DeepCool GamerStorm DQ-M V2L 850W, where CWT was forced to apply an aggressive fan speed profile to allow the low-quality primary switching FETs to run at lower temperatures. 

All in all, the NZXT C750 is a solid choice, but if you care a lot about noise output, you should take a look at the Corsair RM750 and RM750x, the XPG Core Reactor 750 and the Asus ROG Strix 750. 

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Disclaimer: Aris Mpitziopoulos is Tom's Hardware's PSU reviewer. He is also the Chief Testing Engineer of Cybenetics and developed the Cybenetics certification methodologies apart from his role on Tom's Hardware. Neither Tom's Hardware nor its parent company, Future PLC, are financially involved with Cybenetics. Aris does not perform the actual certifications for Cybenetics.

  • Avro Arrow
    Nice-looking PSU. The only problem is that these days, people don't know which way to turn with all of these re-branded PSUs. As you stated, this is the same as the SeaSonic, which makes it good, but there are so many good PSUs that the market is just saturated. Names like EVGA, Antec, Corsair, and Be Quiet! are all top-tier and well-respected names.

    Then in the second tier you get names like Cooler Master, Thermaltake, Gigabyte and ASUS. This NZXT could easily get lost in the mix.
    Reply
  • E-Bert
    a bit late but a question about the noise level, it says 33 decibels average across usage, but if im only using say 550W max load is it ever going to hit that 33 decibels? its the only thing stopping me from picking one up at the moment
    Reply