The Corsair HX620W Power Supply delivered very good performance results, with stable voltage rails that were mostly on target and varied less than 1% (although the 5V rail dipped to 2% at full load). The HX620W delivers excellent efficiency, maintaining over 80% even at high load levels. The unit is also rather quiet and offers excellent cooling with its 120mm fan, even under demanding pressure. The build quality of the unit is also excellent, and its flat modular cable design makes installation easy.
The unit is also priced rather well, especially considering the quality you get. 620 Watts of power is more than adequate for a gamer’s SLI setup, and doesn’t cost as much as the expensive 1000W units available today. It is very easy to recommend the Corsair HX620W power supply, as it is more stable than most other power supplies, including some of the more expensive 1000W units.
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