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Cooler Master GX III 750 vs Corsair RM750e: Comparison
Cooler Master GX III 750 vs Corsair RM750e warranty compared
Start with warranty, because it is the widest measured gap between them: Cooler Master GX III 750 10 years against Corsair RM750e 7 years, 30% in favour of Cooler Master GX III 750.
Cooler Master GX III 750 vs Corsair RM750e: which one fits your build
The Cooler Master GX III 750 suits RTX 4070/4070 Ti builds wanting native ATX 3.1 and mainstream gaming rigs with a long-term warranty focus, though it is not built for high-wattage multi-GPU or workstation loads and SFX/small-form-factor builds. The Corsair RM750e is the one to take for quiet builds where fan-off idle and light-load silence matters and single RTX 5070 Ti-class GPU builds on a budget, though it is the wrong buy for RTX 5080 or 5090 builds, wattage isn't enough. It is not the one for RX 9070 XT builds needing 3 PCIe 8-pin connectors without checking cable count first. Our rating of the Cooler Master GX III 750 (8.2/10): A well-rounded 750W Gold ATX 3.1 unit with a strong warranty, right in step with the best in this wattage class.
What Cooler Master GX III 750 and Corsair RM750e have in common
Where they agree, they agree completely, wattage, modularity, 80 plus rating, atx standard and form factor included, so the decision does not turn on any of those. They match on 7 further specifications as well.
Cooler Master GX III 750 vs Corsair RM750e price
The Cooler Master GX III 750 asks 11% more, $99.99 against $89.99 for the Corsair RM750e.
Frequently asked questions
Do the Cooler Master GX III 750 and Corsair RM750e differ on fan size?
Yes. Fan Size reads 135 mm on the Cooler Master GX III 750 versus 120 mm on the Corsair RM750e.
Is the Single +12V Rail the same on the Cooler Master GX III 750 and Corsair RM750e?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Which is cheaper, Cooler Master GX III 750 or Corsair RM750e?
The Cooler Master GX III 750 asks 11% more, $99.99 against $89.99 for the Corsair RM750e.
Specs and benchmarks
Brand
- Cooler Master GX III 750
- Cooler Master
- Corsair RM750e
- Corsair
Wattage
- Cooler Master GX III 750
- 750 W
- Corsair RM750e
- 750 W
80 PLUS Rating
- Cooler Master GX III 750
- Gold
- Corsair RM750e
- Gold
Model Number
- Cooler Master GX III 750
- GX III 750
- Corsair RM750e
- CP-9020295-NA (black) / CP-9020292-NA (white)
ATX Standard
- Cooler Master GX III 750
- ATX 3.1
- Corsair RM750e
- ATX 3.1
Form Factor
- Cooler Master GX III 750
- ATX
- Corsair RM750e
- ATX
Single +12V Rail
- Cooler Master GX III 750
- Yes
- Corsair RM750e
- Yes
Cybenetics Efficiency
- Cooler Master GX III 750
- Platinum
- Corsair RM750e
- Gold
Cybenetics Noise
- Cooler Master GX III 750
- A-
- Corsair RM750e
- A
12V-2x6 Connectors
- Cooler Master GX III 750
- 1
- Corsair RM750e
- 1
Zero-RPM Mode
- Cooler Master GX III 750
- Yes
- Corsair RM750e
- Yes
Sleeved Cables
- Cooler Master GX III 750
- No
- Corsair RM750e
- No
Connector Count
- Cooler Master GX III 750
- 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12V-2x6, 3x PCIe 6+2-pin, 8x SATA, 4x Molex
- Corsair RM750e
- 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6, 6x SATA, 2x Molex
Fan Size
- Cooler Master GX III 750
- 135 mm
- Corsair RM750e
- 120 mm
Fan Model / Bearing
- Cooler Master GX III 750
- 135mm (Hong Hua HA13525H12F-Z)
- Corsair RM750e
- Rifle
EPS 8-pin Connectors
- Cooler Master GX III 750
- 2
- Corsair RM750e
- 2
SATA Connectors
- Cooler Master GX III 750
- 8
- Corsair RM750e
- 6
Molex Connectors
- Cooler Master GX III 750
- 4
- Corsair RM750e
- 2
Cable Lengths
- Cooler Master GX III 750
- 24-pin 610mm, EPS 600mm, PCIe 550mm, 12V-2x6 650mm, SATA 500+120+120+120mm, Molex 500+120+120+120mm
- Corsair RM750e
- 24-pin 610mm, EPS 750-850mm, 12V-2x6 650mm
Length
- Cooler Master GX III 750
- 160 mm
- Corsair RM750e
- 140 mm
Colour
- Cooler Master GX III 750
- Black
- Corsair RM750e
- Black
MTBF
- Cooler Master GX III 750
- 100000 hours
- Corsair RM750e
- 100000 hours
Modularity
- Cooler Master GX III 750
- Fully Modular
- Corsair RM750e
- Fully Modular
Protections
- Cooler Master GX III 750
- OPP, OVP, OTP, OCP, SCP, UVP, Surge & Inrush
- Corsair RM750e
- OCP, OVP, OPP, SCP, OTP, UVP
Price
- Cooler Master GX III 750
- 99.99 USD
- Corsair RM750e
- 89.99 USD
Warranty
- Cooler Master GX III 750
- 10 yearsBest
- Corsair RM750e
- 7 years-30%
Which one should you pick?
Choose Cooler Master GX III 750 if you want the higher wattage (750 W vs 750 W), the higher 12V-2x6 connectors (1 vs 1) and the higher MTBF (100000 hours vs 100000 hours).
Choose Corsair RM750e if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Cooler Master GX III 750 | Corsair RM750e |
|---|---|---|
| Amazon | $99.99 View on Amazon | $89.99 View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Cooler Master GX III 750
8.2 / 10 Expert Rating
A well-rounded 750W Gold ATX 3.1 unit with a strong warranty, right in step with the best in this wattage class.
Corsair RM750e
8 / 10 Expert Rating
The quietest thing at this money by a real margin, but MSI gives you a better fan, more cables and three more years of warranty for five dollars.