Bjorn3D.com: "The Corsair CMPSU-620HX 620W power supply literally beats the pants off every mid to upper range PSU I've tested thus far so why not make it my reference standard until I find something better, assuming that happens"
"We'll begin our conclusion by saying that the Corsair CMPSU-620HX 620W power supply is one incredible power supply! The test system utilized is by no means a slouch, we threw everything we had at this PSU and it was like it wasn't even phased by the load. I'm simply amazed by its performance! With performance of this type one would expect the cooling fan to be working at max RPMs, WRONG! The CMPSU-620HX took the load in stride and easily proved to be the quietest PSU I've tested to date. I could never even hear the Adda fan of this unit, much less hear it ramp up the RPMs due to increased power demand. Let's see quiet, efficient, solid as a rock, hmmm I think I've covered all the bases. ...Oh, did I mention that until a better product comes along this will be my new reference power supply. Some might think that this is a huge step for a brand new product, I would both agree and disagree! It's a huge step for a brand new product to perform as well as this product does, it's not a huge step to uses it as a reference PSU. Final Score: 9.5 out of 10 and the Bjorn3D Golden Bear award."
PC Perspective: "Corsair brings to market an excellent new power supply... Highly recommended."
"The HX620W delivers solid voltages with very good regulation and excellent efficiency. It supports the latest ATX12V v2.2 and EPS12V 2.91 standards and is backed by an industry leading 5-year warranty. With 620W of continuous power, the HX620W should be well suited for your next high-end gaming or workstation build. For excellent performance and outstanding efficiency, the new Corsair HX620W power supply is awarded the coveted PCPerspective Silver Award."
Jonny Guru (PSU test specialist): "No doubt Corsair has put forward a power supply that would suit anyone's needs."
"What do you get when you take a solid platform, with 80% efficiency, active PFC, a quiet 120MM fan and a well designed fan controller and make it modular for $169? Why, it's a Corsair HX620W, of course!"
LegitReviews: Editor's Choice Award
"It clearly out performs a number power supplies that we have reviewed in the past, which goes to show that Corsair has spent a great deal of time researching what type of power supply to put together for enthusiasts. With a clean and simple metal housing on the outside and strong and stable components on the inside we strongly suggest looking at the HX series from Corsair."
HotHardware.com: Editor's Choice
"In nearly every respect, Corsair has done an excellent job with the CMPSU-620HX power supply. The unit features three 12V rails, a unique modular cable design, industrial grade components, it boasts an 80%+ efficiency rating, and is exceptionally quiet."
ViperLair.com: "VL Recommended"
"Where we feel the Corsair has a clear advantage is the warranty and the cabling. The efficiency rating on Corsair is also a little higher at 84%, which will matter if you tend to leave your PC powered on 24/7."
