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be quiet! Dark Power 13 1000W vs Cooler Master GX III 750: Comparison
be quiet! Dark Power 13 1000W vs Cooler Master GX III 750: the wattage difference
On wattage the spread is 25%, be quiet! Dark Power 13 1000W 1000 W against Cooler Master GX III 750 750 W, so be quiet! Dark Power 13 1000W takes it. be quiet! Dark Power 13 1000W also leads on pcie 8-pin connectors, 4 on the be quiet! Dark Power 13 1000W versus 3 on the Cooler Master GX III 750.
Who each one is for
Buy the be quiet! Dark Power 13 1000W for anyone who wants fully modular cabling with native 12V-2x6 support and systems where a 10-year warranty and Titanium-tier efficiency matter, though it is the wrong buy for builds needing more than 1000W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. It also earns its place with builders targeting an RTX 4080/4090 or RTX 5080/5090-class high-end gaming build. The Cooler Master GX III 750 is the one to take for 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.
Which is cheaper, be quiet! Dark Power 13 1000W or Cooler Master GX III 750?
The be quiet! Dark Power 13 1000W asks 250% more, $350 against $99.99 for the Cooler Master GX III 750.
Where the two are identical
Everything else lines up. Modularity, fan size, warranty, atx standard and form factor read the same on both, so those are not worth weighing. They match on 4 further specifications as well.
Frequently asked questions
Do the be quiet! Dark Power 13 1000W and Cooler Master GX III 750 differ on 80 plus rating?
Yes. 80 PLUS Rating reads Titanium on the be quiet! Dark Power 13 1000W versus Gold on the Cooler Master GX III 750.
Is the 12V-2x6 Connectors the same on the be quiet! Dark Power 13 1000W and Cooler Master GX III 750?
It is. Both are listed at 1, so it is not a reason to pick one over the other.
Which is cheaper, be quiet! Dark Power 13 1000W or Cooler Master GX III 750?
The be quiet! Dark Power 13 1000W asks 250% more, $350 against $99.99 for the Cooler Master GX III 750.
Specs and benchmarks
Brand
- be quiet! Dark Power 13 1000W
- be quiet!
- Cooler Master GX III 750
- Cooler Master
Wattage
- be quiet! Dark Power 13 1000W
- 1000 WBest
- Cooler Master GX III 750
- 750 W-25%
80 PLUS Rating
- be quiet! Dark Power 13 1000W
- Titanium
- Cooler Master GX III 750
- Gold
Model Number
- be quiet! Dark Power 13 1000W
- Dark Power 13 1000W
- Cooler Master GX III 750
- GX III 750
ATX Standard
- be quiet! Dark Power 13 1000W
- ATX 3.1
- Cooler Master GX III 750
- ATX 3.1
Form Factor
- be quiet! Dark Power 13 1000W
- ATX
- Cooler Master GX III 750
- ATX
Cybenetics Efficiency
- be quiet! Dark Power 13 1000W
- Titanium
- Cooler Master GX III 750
- Platinum
Cybenetics Noise
- be quiet! Dark Power 13 1000W
- A+
- Cooler Master GX III 750
- A-
12V-2x6 Connectors
- be quiet! Dark Power 13 1000W
- 1
- Cooler Master GX III 750
- 1
Zero-RPM Mode
- be quiet! Dark Power 13 1000W
- No
- Cooler Master GX III 750
- Yes
Sleeved Cables
- be quiet! Dark Power 13 1000W
- Yes
- Cooler Master GX III 750
- No
Measured Avg Efficiency
- be quiet! Dark Power 13 1000W
- 91.34 %Best
- Cooler Master GX III 750
- 89.9 %
PCIe 8-pin Connectors
- be quiet! Dark Power 13 1000W
- 4
- Cooler Master GX III 750
- 3-25%
Measured Average Noise
- be quiet! Dark Power 13 1000W
- 17.93 dBABest
- Cooler Master GX III 750
- 29.52 dBA
Connector Count
- be quiet! Dark Power 13 1000W
- 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12V-2x6 (600W), 4x PCIe 6+2-pin, 13x SATA, 2x Molex
- 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
Fan Size
- be quiet! Dark Power 13 1000W
- 135 mm
- Cooler Master GX III 750
- 135 mm
Fan Model / Bearing
- be quiet! Dark Power 13 1000W
- 135mm Silent Wings (BQ SIW3-13525-HF), fluid dynamic bearing
- Cooler Master GX III 750
- 135mm (Hong Hua HA13525H12F-Z)
EPS 8-pin Connectors
- be quiet! Dark Power 13 1000W
- 2
- Cooler Master GX III 750
- 2
SATA Connectors
- be quiet! Dark Power 13 1000W
- 13
- Cooler Master GX III 750
- 8
Molex Connectors
- be quiet! Dark Power 13 1000W
- 2
- Cooler Master GX III 750
- 4
Cable Lengths
- be quiet! Dark Power 13 1000W
- ATX 600mm, EPS 700mm, PCIe 600mm, 12V-2x6 600mm, SATA 600+150+150+150mm
- 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
Length
- be quiet! Dark Power 13 1000W
- 175 mm
- Cooler Master GX III 750
- 160 mm
Colour
- be quiet! Dark Power 13 1000W
- Black
- Cooler Master GX III 750
- Black
MTBF
- be quiet! Dark Power 13 1000W
- 100000 hours
- Cooler Master GX III 750
- 100000 hours
Modularity
- be quiet! Dark Power 13 1000W
- Fully Modular
- Cooler Master GX III 750
- Fully Modular
Protections
- be quiet! Dark Power 13 1000W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Cooler Master GX III 750
- OPP, OVP, OTP, OCP, SCP, UVP, Surge & Inrush
Price
- be quiet! Dark Power 13 1000W
- 349.99 USD
- Cooler Master GX III 750
- 99.99 USD
Warranty
- be quiet! Dark Power 13 1000W
- 10 years
- Cooler Master GX III 750
- 10 years
Which one should you pick?
Choose be quiet! Dark Power 13 1000W if you want the higher wattage (1000 W vs 750 W), the higher 12V-2x6 connectors (1 vs 1) and the higher PCIe 8-pin connectors (4 vs 3).
Choose Cooler Master GX III 750 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | be quiet! Dark Power 13 1000W | Cooler Master GX III 750 |
|---|---|---|
| Amazon | $349.99 View on Amazon | $99.99 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
be quiet! Dark Power 13 1000W
9.3 / 10 Expert Rating
A best-in-class 1000W Titanium-rated ATX unit for an RTX 4080/4090 or RTX 5080/5090-class high-end gaming build, held back only by its premium price.
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.




