Corsair HX750w (750w) ATX PSU


Corsair HX750wTo cut a long story short, the HX750w is every bit as good as it's bigger brother the HX850w. Throughout the testing the voltage and efficiency results were so uncannily similar that if not for the MAX load results topping out at 913w (vs 1084w on the HX850w), we would have happily put money on the HX750w simply being a HX850w with different stickers and less two of the hard-wired PCI-E connectors.
In effect, this positions the HX750w as THE BEST 750w PSU we've tested on OC3D to date. For an extremely reasonable £113 (over at you get a 750w PSU that not only looks awesome with its smooth powdercoated finish and flat modular cables, but also performs among the best in its class. Efficiency levels rarely went below 90% even when running well above its rated output, and voltages refused to budge by any noteworthy amount no matter what kind of load we threw at it.
So, for the moment at least the choice is simple. If you're looking to power a tri-sli system and need a full six PCI-E connectors, then the HX850w is the way to go. However, if you're sitting on a small roll of £20 notes and are looking for an awesome PSU to power your single or dual GPU system, then you really should be looking no further than the HX750w.
The Good
- Extremely high efficiency at around 90-93%.
- Runs reasonably cool and quiet (from what we could tell over the din of the load tester)
- Excellent voltage regulation on all rails, even in cross load situations.
- Ripple almost non-existant on +3.3v and +5v rails. Also very low on +12v rail.
- High quality internal components.
- Great modular connector system with plenty of sexy 'flat' style cables.
- Well packaged. Hardly any chance of damage during shipping.
- Has a sustainable peak output of 887w when running at 50°C!
The Mediocre
- Would quite like for hard-wired cables to use the same 'flat' style cables as the modular connectors.
The Bad
- Nothing at all
In recognition of the HX750W's outstanding performance Overclock3D is pleased to award the unit our highly coveted Best In Class Award in the PSU class of 650-850W.
Overclock3D Best In Class
Thanks to Corsair for sending the HX750W in for review. Discuss this review in our forums.
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Most Recent Comments

27-08-2009, 15:40:15

"After being blown away with the performance of the HX850w back in June it's time to fire up the OC3D load tester once more and see if HX750w can leave an equally good impression."

Corsair HX750w (750w) ATX PSUQuote

27-08-2009, 16:06:57

Corsair have definitely moved up to one of 'the' psus I look for when pondering a shopping cart. Having also had a few questionable situations with psus other people had praised for years.

Great stuff, just like the 850.Quote

27-08-2009, 16:56:18

I am convinced, will be investing very soon

Thanks for such a good review Quote

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