Consumercarts is reader-supported. Learn more
Antec Signature 1300 Platinum vs Cooler Master GX III 750: Comparison
What is the difference between Antec Signature 1300 Platinum and Cooler Master GX III 750?
Wattage is where these two genuinely part company, Antec Signature 1300 Platinum 1300 W against Cooler Master GX III 750 750 W, a 42% lead for Antec Signature 1300 Platinum. Pcie 8-pin connectors runs the same way, 12 on the Antec Signature 1300 Platinum versus 3 on the Cooler Master GX III 750, another win for Antec Signature 1300 Platinum.
Antec Signature 1300 Platinum vs Cooler Master GX III 750: which one fits your build
The Antec Signature 1300 Platinum suits builders targeting a workstation or multi-GPU build with serious headroom and anyone who wants fully modular cabling with native 12V-2x6 support, though it is not the pick for builds needing more than 1300W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. 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. Our rating of the Antec Signature 1300 Platinum (8.8/10): A best-in-class 1300W Platinum-rated ATX unit for a workstation or multi-GPU build with serious headroom, held back only by its premium price.
Antec Signature 1300 Platinum vs Cooler Master GX III 750 price
The Antec Signature 1300 Platinum asks 190% more, $290 against $99.99 for the Cooler Master GX III 750.
What Antec Signature 1300 Platinum and Cooler Master GX III 750 have in common
The common ground is wider than the gap: modularity, fan size, warranty, form factor and single +12v rail are identical here. They match on 4 further specifications as well.
Frequently asked questions
Do the Antec Signature 1300 Platinum and Cooler Master GX III 750 differ on 80 plus rating?
Yes. 80 PLUS Rating reads Platinum on the Antec Signature 1300 Platinum versus Gold on the Cooler Master GX III 750.
Is the Cybenetics Efficiency the same on the Antec Signature 1300 Platinum and Cooler Master GX III 750?
It is. Both are listed at Platinum, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- Antec Signature 1300 Platinum
- Antec
- Cooler Master GX III 750
- Cooler Master
Wattage
- Antec Signature 1300 Platinum
- 1300 WBest
- Cooler Master GX III 750
- 750 W-42%
80 PLUS Rating
- Antec Signature 1300 Platinum
- Platinum
- Cooler Master GX III 750
- Gold
Model Number
- Antec Signature 1300 Platinum
- Signature Platinum 1300
- Cooler Master GX III 750
- GX III 750
ATX Standard
- Antec Signature 1300 Platinum
- ATX 2.x
- Cooler Master GX III 750
- ATX 3.1
Form Factor
- Antec Signature 1300 Platinum
- ATX
- Cooler Master GX III 750
- ATX
+12V Rail Amperage
- Antec Signature 1300 Platinum
- 108 A
- Cooler Master GX III 750
- 62.5 A
Single +12V Rail
- Antec Signature 1300 Platinum
- Yes
- Cooler Master GX III 750
- Yes
Cybenetics Efficiency
- Antec Signature 1300 Platinum
- Platinum
- Cooler Master GX III 750
- Platinum
Cybenetics Noise
- Antec Signature 1300 Platinum
- None
- Cooler Master GX III 750
- A-
12V-2x6 Connectors
- Antec Signature 1300 Platinum
- 0
- Cooler Master GX III 750
- 1
Zero-RPM Mode
- Antec Signature 1300 Platinum
- Yes
- Cooler Master GX III 750
- Yes
Sleeved Cables
- Antec Signature 1300 Platinum
- Yes
- Cooler Master GX III 750
- No
Measured Avg Efficiency
- Antec Signature 1300 Platinum
- 89.97 %Best
- Cooler Master GX III 750
- 89.9 %
PCIe 8-pin Connectors
- Antec Signature 1300 Platinum
- 12
- Cooler Master GX III 750
- 3-75%
Measured Average Noise
- Antec Signature 1300 Platinum
- 47.79 dBA
- Cooler Master GX III 750
- 29.52 dBABest
Connector Count
- Antec Signature 1300 Platinum
- 1x 24-pin ATX, 2x EPS 4+4, 12x PCIe 6+2-pin, 14x SATA, 5x Molex, 1x FDD
- 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 Signature 1300 Platinum
- 135 mm
- Cooler Master GX III 750
- 135 mm
Fan Model / Bearing
- Antec Signature 1300 Platinum
- Hong Hua HA13525H12F-Z, fluid dynamic bearing
- Cooler Master GX III 750
- 135mm (Hong Hua HA13525H12F-Z)
EPS 8-pin Connectors
- Antec Signature 1300 Platinum
- 2
- Cooler Master GX III 750
- 2
SATA Connectors
- Antec Signature 1300 Platinum
- 14
- Cooler Master GX III 750
- 8
Molex Connectors
- Antec Signature 1300 Platinum
- 5
- Cooler Master GX III 750
- 4
Cable Lengths
- Antec Signature 1300 Platinum
- ATX 600mm, EPS 650mm, PCIe 670+70mm, SATA 400+115+115+115mm and 350+150+150+150mm, Molex 450+120+120mm and 350+120mm
- 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 Signature 1300 Platinum
- 170 mm
- Cooler Master GX III 750
- 160 mm
Colour
- Antec Signature 1300 Platinum
- Black
- Cooler Master GX III 750
- Black
Modularity
- Antec Signature 1300 Platinum
- Fully Modular
- Cooler Master GX III 750
- Fully Modular
Protections
- Antec Signature 1300 Platinum
- OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
- Cooler Master GX III 750
- OPP, OVP, OTP, OCP, SCP, UVP, Surge & Inrush
Price
- Antec Signature 1300 Platinum
- 289.99 USD
- Cooler Master GX III 750
- 99.99 USD
Warranty
- Antec Signature 1300 Platinum
- 10 years
- Cooler Master GX III 750
- 10 years
Which one should you pick?
Choose Antec Signature 1300 Platinum if you want the higher wattage (1300 W vs 750 W), the higher PCIe 8-pin connectors (12 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 Signature 1300 Platinum | Cooler Master GX III 750 |
|---|---|---|
| Amazon | $289.99 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
Antec Signature 1300 Platinum
8.8 / 10 Expert Rating
A best-in-class 1300W Platinum-rated ATX unit for a workstation or multi-GPU build with serious headroom, 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.