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.
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.
