Asus High end
Check on Amazon ROG Strix X870-A Gaming WiFi
$285–$315
X870 platform match
Super Flower Leadex III 850W (2024)
- Brand
- Super Flower
- Model
- Leadex III 850W
ATX 3.1, 80+ Gold, fully modular 850W PSU with 12V‑2x6 cable—aimed at modern single‑GPU builds needing headroom without going 1 kW.
TierHigh end?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
Released2024
As an Amazon Associate, GixCore earns from qualifying purchases.Pricing note?This range is based on our last recorded catalog price and is not a quote. Check Amazon for the current price.
Wattage850 W
Efficiency80+ Gold
Form factorATX
ModularYes
GixCore Editorial
Product overview
Super Flower’s Leadex III 850W (Gold) is an ATX 3.1 refresh of the Leadex III family. The ATX 3.1 variant reached retail in October 2024 (Japan) and was Cybenetics‑certified on April 14, 2025, confirming the current spec.
Positioned as a high_end, fully modular 80 Plus Gold ATX unit, it exists to power modern single‑GPU builds without stepping up to 1 kW. Its 850 W capacity, ±1% voltage regulation, and ATX 3.1 excursion tolerance make it a solid choice for mid‑range gaming and high‑end GPU builds with a bit of headroom/overclocking. It supports PCIe Gen5 cards via a bundled dual‑8‑pin‑to‑12V‑2x6 cable (native 12V‑2x6 is reserved for 1000 W+ models). Not discontinued as of 2026.
Best for
Official product specifications - mid-range gaming
- high-end GPU builds
- ATX 3.0 GPUs
- headroom/overclocking
Pairing fit
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Gigabyte High end
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Z890 platform match
MSI High end
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$199–$220
Z790 platform match
Asus High end
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$190–$210
Z790 platform match
Gigabyte High end
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$180–$199
Z790 platform match
Gigabyte High end
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$161–$178
Z790 platform matchBudget pairings6 lower-tier compatible options
Gigabyte Mainstream
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$193–$214
B850 platform match
Gigabyte Mainstream
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$180–$199
B850 platform match
Gigabyte Mainstream
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$114–$126
B760 platform match
MSI Mainstream
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$117–$129
B760 platform match
MSI Mainstream
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$133–$147
B760 platform match
ASUS Mainstream
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B760 platform matchPairing fit
Compatible Cases
Compatible options ranked for this part's performance class.
Fractal Design High end
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$212–$234
ATX motherboard fit
NZXT High end
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$114–$126
ATX motherboard fit
Montech High end
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$123–$136
ATX motherboard fit
be quiet! High end
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$199–$220
ATX motherboard fit
Corsair Enthusiast
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$256–$283
ATX motherboard fit
Cooler Master Enthusiast
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$237–$262
ATX, mATX, Mini-ITX motherboard fitBudget pairings6 lower-tier compatible options
Lian Li Mainstream
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$85–$94
mATX motherboard fit
CORSAIR Mainstream
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$171–$189
mATX motherboard fit
NZXT Mainstream
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$142–$157
ATX motherboard fit
Corsair Mainstream
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$114–$126
ATX motherboard fit
Corsair Mainstream
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$296–$327
ATX motherboard fit
Lian Li Mainstream
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$95–$105
ATX, mATX, Mini-ITX motherboard fitSpecifications
At a glance iDots are a representative catalog sample. Farther right means a higher measured value, not necessarily a better fit.Measured against the power supplies catalog
Current modelCatalog sample
Wattage850 W
Higher than 73% of power supplies
- Wattage
- 850 W
- Efficiency
- 80+ Gold
- Modular
- Yes
- Eco Mode
- Yes
- Form factor
- ATX