Corsair CX750M (2021) Power Supply Review

The Corsair CX750M offers much for its price.

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Corsair CX750M (2021)
(Image: © Tom's Hardware)

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Performance Rating

(Image credit: Tom's Hardware)

The PSU achieves good performance for a unit using a double-forward platform. The problem is that it costs the same with the EVGA 750 GA, which as you can see dominates the performance chart since it uses a more modern platform. 

Noise Rating

The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit).

(Image credit: Tom's Hardware)

The average noise output could be lower. The increased noise at high loads notably affects the average noise output. 

Efficiency Rating

The following graph shows the PSU's average efficiency throughout its operating range with an ambient temperature close to 30 degrees Celsius.

(Image credit: Tom's Hardware)

Average efficiency is high enough for this category's standards. 

Power Factor Rating

The following graphs show the PSU's average power factor reading throughout its operating range with an ambient temperature close to 30 degrees Celsius and 115V/230V voltage input. 

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Corsair CX750M
(Image credit: Tom's Hardware)

The APFC converter does an excellent job! 

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Aris Mpitziopoulos
Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.

1 Comment Comment from the forums
  • Co BIY
    Another great review!

    Why do you prefer a full modular cable set up to this semi-modular ? At this price point I think semi-modular is "best". One less failure point and greater efficiency. I don't think custom cabling is a consideration for this range. I think Semi-modular should be considered best practice outside of Vanity/RGB/Bling focused lines.

    For appearance sake I do think the exit point of a semi-modular "main cable" of could be made to visually match the other cables without giving up the advantages.
    Reply