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Antec HCG1000 Gold Extreme vs Cooler Master GX III 750: Comparison
What is the difference between Antec HCG1000 Gold Extreme and Cooler Master GX III 750?
On wattage the spread is 25%, Antec HCG1000 Gold Extreme 1000 W against Cooler Master GX III 750 750 W, so Antec HCG1000 Gold Extreme takes it. Add pcie 8-pin connectors to that, 8 on the Antec HCG1000 Gold Extreme versus 3 on the Cooler Master GX III 750, and the pattern holds.
Who each one is for
The Antec HCG1000 Gold Extreme is the one to take for anyone who wants fully modular cabling with native 12V-2x6 support and systems where a 10-year warranty and Gold-tier efficiency matter, though it is not built 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 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 the pick for high-wattage multi-GPU or workstation loads and SFX/small-form-factor builds.
Where the two are identical
Everything else lines up. Modularity, fan size, warranty, 80 plus rating and form factor read the same on both, so those are not worth weighing. They match on 8 further specifications as well.
Which is cheaper, Antec HCG1000 Gold Extreme or Cooler Master GX III 750?
At the last price check the Cooler Master GX III 750 was $99.99 and the Antec HCG1000 Gold Extreme $150, a 50% premium.
Frequently asked questions
Do the Antec HCG1000 Gold Extreme and Cooler Master GX III 750 differ on atx standard?
Yes. ATX Standard reads ATX 2.x on the Antec HCG1000 Gold Extreme versus ATX 3.1 on the Cooler Master GX III 750.
Is the Single +12V Rail the same on the Antec HCG1000 Gold Extreme and Cooler Master GX III 750?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- Antec HCG1000 Gold Extreme
- Antec
- Cooler Master GX III 750
- Cooler Master
Wattage
- Antec HCG1000 Gold Extreme
- 1000 WBest
- Cooler Master GX III 750
- 750 W-25%
80 PLUS Rating
- Antec HCG1000 Gold Extreme
- Gold
- Cooler Master GX III 750
- Gold
Model Number
- Antec HCG1000 Gold Extreme
- HCG1000 Extreme
- Cooler Master GX III 750
- GX III 750
ATX Standard
- Antec HCG1000 Gold Extreme
- ATX 2.x
- Cooler Master GX III 750
- ATX 3.1
Form Factor
- Antec HCG1000 Gold Extreme
- ATX
- Cooler Master GX III 750
- ATX
+12V Rail Amperage
- Antec HCG1000 Gold Extreme
- 83 A
- Cooler Master GX III 750
- 62.5 A
Single +12V Rail
- Antec HCG1000 Gold Extreme
- Yes
- Cooler Master GX III 750
- Yes
Cybenetics Efficiency
- Antec HCG1000 Gold Extreme
- Platinum
- Cooler Master GX III 750
- Platinum
Cybenetics Noise
- Antec HCG1000 Gold Extreme
- A-
- Cooler Master GX III 750
- A-
12V-2x6 Connectors
- Antec HCG1000 Gold Extreme
- 0
- Cooler Master GX III 750
- 1
Zero-RPM Mode
- Antec HCG1000 Gold Extreme
- Yes
- Cooler Master GX III 750
- Yes
Sleeved Cables
- Antec HCG1000 Gold Extreme
- No
- Cooler Master GX III 750
- No
Measured Avg Efficiency
- Antec HCG1000 Gold Extreme
- 89.7 %
- Cooler Master GX III 750
- 89.9 %Best
PCIe 8-pin Connectors
- Antec HCG1000 Gold Extreme
- 8
- Cooler Master GX III 750
- 3-62%
Measured Average Noise
- Antec HCG1000 Gold Extreme
- 28.31 dBABest
- Cooler Master GX III 750
- 29.52 dBA
Connector Count
- Antec HCG1000 Gold Extreme
- 1x 24-pin ATX, 2x EPS 4+4, 8x PCIe 6+2-pin, 12x SATA, 6x Molex, 1x FDD adapter
- 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
- Antec HCG1000 Gold Extreme
- 135 mm
- Cooler Master GX III 750
- 135 mm
Fan Model / Bearing
- Antec HCG1000 Gold Extreme
- Hong Hua HA13525H12F-Z, fluid dynamic bearing
- Cooler Master GX III 750
- 135mm (Hong Hua HA13525H12F-Z)
EPS 8-pin Connectors
- Antec HCG1000 Gold Extreme
- 2
- Cooler Master GX III 750
- 2
SATA Connectors
- Antec HCG1000 Gold Extreme
- 12
- Cooler Master GX III 750
- 8
Molex Connectors
- Antec HCG1000 Gold Extreme
- 6
- Cooler Master GX III 750
- 4
Cable Lengths
- Antec HCG1000 Gold Extreme
- ATX 550mm, EPS 650mm, PCIe 550mm and 550+100mm, SATA 400+90+90+90mm, Molex 500+100+100+100mm
- 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
- Antec HCG1000 Gold Extreme
- 160 mm
- Cooler Master GX III 750
- 160 mm
Colour
- Antec HCG1000 Gold Extreme
- Black
- Cooler Master GX III 750
- Black
Modularity
- Antec HCG1000 Gold Extreme
- Fully Modular
- Cooler Master GX III 750
- Fully Modular
Protections
- Antec HCG1000 Gold Extreme
- OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
- Cooler Master GX III 750
- OPP, OVP, OTP, OCP, SCP, UVP, Surge & Inrush
Price
- Antec HCG1000 Gold Extreme
- 149.99 USD
- Cooler Master GX III 750
- 99.99 USD
Warranty
- Antec HCG1000 Gold Extreme
- 10 years
- Cooler Master GX III 750
- 10 years
Which one should you pick?
Choose Antec HCG1000 Gold Extreme if you want the higher wattage (1000 W vs 750 W), the higher PCIe 8-pin connectors (8 vs 3) and the higher warranty (10 years vs 10 years).
Choose Cooler Master GX III 750 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Antec HCG1000 Gold Extreme | Cooler Master GX III 750 |
|---|---|---|
| Consumercarts listing | $149.99 View on Consumercarts listing | |
| 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
Antec HCG1000 Gold Extreme
8.3 / 10 Expert Rating
A solid 1000W Gold-rated ATX unit for an RTX 4080/4090 or RTX 5080/5090-class high-end gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.
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.