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ASRock Steel Legend SL-750G vs ASUS ROG Loki SFX-L 850W Platinum: Comparison
ASRock Steel Legend SL-750G vs ASUS ROG Loki SFX-L 850W Platinum wattage compared
The gap that matters here is wattage: ASRock Steel Legend SL-750G 750 W against ASUS ROG Loki SFX-L 850W Platinum 850 W, which puts ASUS ROG Loki SFX-L 850W Platinum 12% ahead. Pcie 8-pin connectors runs the same way, 2 on the ASRock Steel Legend SL-750G versus 3 on the ASUS ROG Loki SFX-L 850W Platinum, another win for ASUS ROG Loki SFX-L 850W Platinum.
Who each one is for
Take the ASRock Steel Legend SL-750G for buyers building a Steel Legend-themed system who want matching PSU aesthetics. A genuine visual differentiator within the category. It is equally the pick for anyone who wants efficiency performance that exceeds the official badge. The independently verified Cybenetics Platinum result here is a real bonus over the Gold certification alone. It is the wrong buy for builds needing more than 750W of headroom. An 850W or higher unit, several covered elsewhere on this site, is the right tier for more demanding GPU pairings. The ASUS ROG Loki SFX-L 850W Platinum is the one to take for builders targeting a small-form-factor build running a high-end GPU and anyone who wants fully modular cabling with native 12V-2x6 support, though it is the wrong buy for builds needing more than 850W of continuous headroom and buyers who need a full-size ATX chassis.
Which is cheaper, ASRock Steel Legend SL-750G or ASUS ROG Loki SFX-L 850W Platinum?
Cost splits them too. ASRock Steel Legend SL-750G sits at $69.99, ASUS ROG Loki SFX-L 850W Platinum at $220, 214% more.
Frequently asked questions
Do the ASRock Steel Legend SL-750G and ASUS ROG Loki SFX-L 850W Platinum differ on fan size?
Yes. Fan Size reads 135 mm on the ASRock Steel Legend SL-750G versus 120 mm on the ASUS ROG Loki SFX-L 850W Platinum.
Is the Modularity the same on the ASRock Steel Legend SL-750G and ASUS ROG Loki SFX-L 850W Platinum?
It is. Both are listed at Fully Modular, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- ASRock Steel Legend SL-750G
- ASRock
- ASUS ROG Loki SFX-L 850W Platinum
- ASUS
Wattage
- ASRock Steel Legend SL-750G
- 750 W-12%
- ASUS ROG Loki SFX-L 850W Platinum
- 850 WBest
80 PLUS Rating
- ASRock Steel Legend SL-750G
- Gold
- ASUS ROG Loki SFX-L 850W Platinum
- Platinum
Model Number
- ASRock Steel Legend SL-750G
- Steel Legend SL-750G
- ASUS ROG Loki SFX-L 850W Platinum
- ROG Loki SFX-L 850W Platinum
ATX Standard
- ASRock Steel Legend SL-750G
- ATX 3.1
- ASUS ROG Loki SFX-L 850W Platinum
- ATX 3.1
Form Factor
- ASRock Steel Legend SL-750G
- ATX
- ASUS ROG Loki SFX-L 850W Platinum
- SFX-L
+12V Rail Amperage
- ASRock Steel Legend SL-750G
- 62.5 A
- ASUS ROG Loki SFX-L 850W Platinum
- 70.8 A
Single +12V Rail
- ASRock Steel Legend SL-750G
- Yes
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
Cybenetics Efficiency
- ASRock Steel Legend SL-750G
- Platinum
- ASUS ROG Loki SFX-L 850W Platinum
- Platinum
Cybenetics Noise
- ASRock Steel Legend SL-750G
- A+
- ASUS ROG Loki SFX-L 850W Platinum
- A
12V-2x6 Connectors
- ASRock Steel Legend SL-750G
- 1
- ASUS ROG Loki SFX-L 850W Platinum
- 1
Hold-Up Time
- ASRock Steel Legend SL-750G
- 16.3 ms-22%
- ASUS ROG Loki SFX-L 850W Platinum
- 20.8 ms
Zero-RPM Mode
- ASRock Steel Legend SL-750G
- Yes
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
Sleeved Cables
- ASRock Steel Legend SL-750G
- No
- ASUS ROG Loki SFX-L 850W Platinum
- No
Measured Avg Efficiency
- ASRock Steel Legend SL-750G
- 90.08 %
- ASUS ROG Loki SFX-L 850W Platinum
- 90.31 %Best
PCIe 8-pin Connectors
- ASRock Steel Legend SL-750G
- 2-33%
- ASUS ROG Loki SFX-L 850W Platinum
- 3
Measured Average Noise
- ASRock Steel Legend SL-750G
- 18.76 dBABest
- ASUS ROG Loki SFX-L 850W Platinum
- 23.76 dBA
Connector Count
- ASRock Steel Legend SL-750G
- 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 9x SATA, 3x Molex
- ASUS ROG Loki SFX-L 850W Platinum
- 1x 24/20-pin ATX, 2x EPS 4+4-pin, 1x PCIe 16-pin, 3x PCIe 8-pin, 6x SATA, 4x Peripheral
Fan Size
- ASRock Steel Legend SL-750G
- 135 mm
- ASUS ROG Loki SFX-L 850W Platinum
- 120 mm
Fan Model / Bearing
- ASRock Steel Legend SL-750G
- 135mm striped axial fluid dynamic bearing (RL4ZS1352512HH)
- ASUS ROG Loki SFX-L 850W Platinum
- 120mm double ball bearing (CF1225H12D)
OEM / Platform
- ASRock Steel Legend SL-750G
- HEC
- ASUS ROG Loki SFX-L 850W Platinum
- Great Wall
Japanese Capacitors
- ASRock Steel Legend SL-750G
- Yes
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
EPS 8-pin Connectors
- ASRock Steel Legend SL-750G
- 2
- ASUS ROG Loki SFX-L 850W Platinum
- 2
SATA Connectors
- ASRock Steel Legend SL-750G
- 9
- ASUS ROG Loki SFX-L 850W Platinum
- 6
Molex Connectors
- ASRock Steel Legend SL-750G
- 3
- ASUS ROG Loki SFX-L 850W Platinum
- 4
Length
- ASRock Steel Legend SL-750G
- 150 mm
- ASUS ROG Loki SFX-L 850W Platinum
- 125 mm
Colour
- ASRock Steel Legend SL-750G
- Black
- ASUS ROG Loki SFX-L 850W Platinum
- Black
Fan Bearing
- ASRock Steel Legend SL-750G
- Fluid Dynamic
- ASUS ROG Loki SFX-L 850W Platinum
- Ball
MTBF
- ASRock Steel Legend SL-750G
- 100000 hours-17%
- ASUS ROG Loki SFX-L 850W Platinum
- 120000 hours
Modularity
- ASRock Steel Legend SL-750G
- Fully Modular
- ASUS ROG Loki SFX-L 850W Platinum
- Fully Modular
Protections
- ASRock Steel Legend SL-750G
- OCP, SCP, OVP, UVP, OTP, OPP
- ASUS ROG Loki SFX-L 850W Platinum
- OPP, OVP, UVP, SCP, OCP, OTP
Price
- ASRock Steel Legend SL-750G
- 69.99 USD
- ASUS ROG Loki SFX-L 850W Platinum
- 219.99 USD
Warranty
- ASRock Steel Legend SL-750G
- 10 years
- ASUS ROG Loki SFX-L 850W Platinum
- 10 years
Which one should you pick?
Choose ASRock Steel Legend SL-750G if you want the higher 12V-2x6 connectors (1 vs 1) and the higher warranty (10 years vs 10 years).
Choose ASUS ROG Loki SFX-L 850W Platinum if you want the higher wattage (850 W vs 750 W), the higher Hold-Up time (20.8 ms vs 16.3 ms) and the higher PCIe 8-pin connectors (3 vs 2).
Price comparison
| Retailer | ASRock Steel Legend SL-750G | ASUS ROG Loki SFX-L 850W Platinum |
|---|---|---|
| Newegg | $69.99 View on Newegg | |
| Amazon | $219.99 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
ASUS ROG Loki SFX-L 850W Platinum
8.8 / 10 Expert Rating
A best-in-class 850W Platinum-rated SFX-L unit for a small-form-factor build running a high-end GPU, held back only by its premium price.




