The Chieftec Polaris 750 W contends against tough competitors in units like the Corsair RM750x and Seasonic Focus Plus Gold of similar capacity. Given its current price, I cannot recommend the Chieftec offering over the models mentioned above because its performance is lower overall, and it only has a two-year warranty as opposed to the much longer warranty of the competition. However, I would also like to mention that I am not a supporter of the insanely long warranty periods of 7–10 years when it comes to power supplies because there are so many potential points of failure in a PSU. With too many returns, a brand will either close shop after some time or increase prices to survive. Moreover, with many "holes" in these warranties in terms of coverage, brands may also refuse to honor these when it comes to PSUs, and not only.

I am personally very skeptical of warranties past the 3–5 year mark. Think about it: You buy a new car, and in the majority of cases, the warranty period ranges from three to five years. Yet with a power supply, you suddenly have a warranty of 10 years, which looks awry, at least to me. With that having been said, Chieftec does have to find a way to offer a longer warranty because other brands, like Corsair, EVGA, and Seasonic, have dramatically raised the ante with their warranties.

The High Power platform Chieftec uses with this PSU needs changes or a notable price drop to be competitive. For one, the fan needs to be replaced with another of better quality, as do the caps on the secondary side. A longer hold up time would require a larger bulk cap, which is one of the most expensive parts in a power supply. Lastly, EMI performance at low frequencies needs to be improved because the spurs my equipment measured are high. I won't hold the lack of compatibility with alternative sleep mode against it too much because there aren't many PSUs that offer it, and I don't expect many motherboards in the near future to support alternative sleep mode, either. However, when you buy a PSU, you are most likely planning on keeping it for more than a system build or upgrade cycle, so grabbing a PSU with alternative sleep mode support is also a form of future-proofing your build.