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ASUS ROG Loki SFX-L 750W Platinum vs Cooler Master GX3 850W: Comparison
ASUS ROG Loki SFX-L 750W Platinum and Cooler Master GX3 850W separate most on mtbf: ASUS ROG Loki SFX-L 750W Platinum at 120000 hours, Cooler Master GX3 850W at 100000 hours, 17% in favour of ASUS ROG Loki SFX-L 750W Platinum. Wattage splits them by another 12%, this time favouring Cooler Master GX3 850W. They match on 9 other specifications, including single +12v rail, cybenetics efficiency and 12v-2x6 connectors. On price, Cooler Master GX3 850W sits at $109.99 against $170.00 for ASUS ROG Loki SFX-L 750W Platinum.
Specs
| Specification |  |  |
|---|---|---|
| Brand | ASUS | Cooler Master |
| Wattage | 750 W-12% | 850 W |
| 80 PLUS Rating | Platinum | Gold |
| ATX Standard | ATX 3.0 | ATX 3.1 |
| Form Factor | SFX-L | ATX |
| +12V Rail Amperage | 62.5 A | 70.8 A |
| Single +12V Rail | Yes | Yes |
| Cybenetics Efficiency | Platinum | Platinum |
| Cybenetics Noise | A+ | A- |
| 12V-2x6 Connectors | 1 | 1 |
| Zero-RPM Mode | Yes | Yes |
| Measured Avg Efficiency | 90.55 % | 89.61 % |
| PCIe 8-pin Connectors | 3 | 3 |
| Measured Average Noise | 18.87 dBA | 26.28 dBA |
| Connector Count | 1x 24/20-pin ATX, 2x EPS 4+4-pin, 1x PCIe 16-pin, 3x PCIe 8-pin, 6x SATA, 4x Peripheral | 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 | 120 mm | 135 mm |
| Fan Model / Bearing | 120mm double ball bearing (CF1225H12D) | 135mm (Hong Hua HA13525H12F-Z) |
| EPS 8-pin Connectors | 2 | 2 |
| SATA Connectors | 6 | 8 |
| Molex Connectors | 4 | 4 |
| Cable Lengths | MB 450mm, CPU 550mm, PCIe 450mm, 16-pin 460mm, SATA 300+190+90mm, Peripheral 300+100+100+100mm | 24-pin 610mm, EPS 600mm, PCIe 550mm, 12V-2x6 650mm, SATA 500+120+120+120mm, Molex 500+120+120+120mm |
| Length | 125 mm | 160 mm |
| MTBF | 120000 hours | 100000 hours-17% |
| Modularity | Fully Modular | Fully Modular |
| Protections | OPP, OVP, UVP, SCP, OCP, OTP | OPP, OVP, OTP, OCP, SCP, UVP, Surge & Inrush |
| Warranty | 10 years | 10 years |
| Model | ROG-LOKI-750P-SFX-L-GAMING | GX III Gold 850 |
| Typical Price | $170 | $109.99 |
| Source URL | https://rog.asus.com/power-supply-units/rog-loki/rog-loki-750p-sfx-l-gaming-model/spec/ | https://www.coolermaster.com/en-global/products/gx-iii-gold-850-atx-3-1.html |
Price comparison
| Retailer | ASUS ROG Loki SFX-L 750W Platinum | Cooler Master GX3 850W |
|---|---|---|
| Amazon | $170.00 View on Amazon | |
| Consumercarts listing | $109.99 View on Consumercarts listing |
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 GX3 850W
8.3 / 10 Expert Rating
A solid 850W Gold-rated ATX unit for a popular RTX 4070 Ti / RTX 5070-class gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.
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