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Antec HCG850 Gold Extreme vs FSP Hydro K PRO 750W: Comparison
What is the difference between Antec HCG850 Gold Extreme and FSP Hydro K PRO 750W?
On warranty the spread is 50%, Antec HCG850 Gold Extreme 10 years against FSP Hydro K PRO 750W 5 years, so Antec HCG850 Gold Extreme takes it. Add wattage to that, 850 W on the Antec HCG850 Gold Extreme versus 750 W on the FSP Hydro K PRO 750W, and the pattern holds. Pcie 8-pin connectors runs the same way, 6 on the Antec HCG850 Gold Extreme versus 4 on the FSP Hydro K PRO 750W, another win for Antec HCG850 Gold Extreme.
Who each one is for
The Antec HCG850 Gold Extreme suits RTX 4080-class single-GPU builds and buyers wanting a 10-year warranty at 850W, though it is the wrong buy for Multi-GPU or extreme workstation loads and SFF builds needing SFX. Buy the FSP Hydro K PRO 750W for anyone who wants semi-modular cabling with standard PCIe connectors and systems where a 3-year warranty and Bronze-tier efficiency matter, though it is not built for builds needing more than 750W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. The same goes for builders targeting a popular RTX 4070 Ti / RTX 5070-class gaming build.
Which is cheaper, Antec HCG850 Gold Extreme or FSP Hydro K PRO 750W?
The Antec HCG850 Gold Extreme asks 85% more, $120 against $64.99 for the FSP Hydro K PRO 750W.
Where the two are identical
Where they agree, they agree completely, atx standard, form factor, single +12v rail, 12v-2x6 connectors and sleeved cables included, so the decision does not turn on any of those. They match on 2 further specifications as well.
Frequently asked questions
Do the Antec HCG850 Gold Extreme and FSP Hydro K PRO 750W differ on modularity?
Yes. Modularity reads Fully Modular on the Antec HCG850 Gold Extreme versus Semi-Modular on the FSP Hydro K PRO 750W.
Is the EPS 8-pin Connectors the same on the Antec HCG850 Gold Extreme and FSP Hydro K PRO 750W?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Which is cheaper, Antec HCG850 Gold Extreme or FSP Hydro K PRO 750W?
The Antec HCG850 Gold Extreme asks 85% more, $120 against $64.99 for the FSP Hydro K PRO 750W.
Specs and benchmarks
Brand
- Antec HCG850 Gold Extreme
- Antec
- FSP Hydro K PRO 750W
- FSP
Wattage
- Antec HCG850 Gold Extreme
- 850 WBest
- FSP Hydro K PRO 750W
- 750 W-12%
80 PLUS Rating
- Antec HCG850 Gold Extreme
- Gold
- FSP Hydro K PRO 750W
- Bronze
Model Number
- Antec HCG850 Gold Extreme
- HCG850 Extreme
- FSP Hydro K PRO 750W
- Hydro K PRO 750W
ATX Standard
- Antec HCG850 Gold Extreme
- ATX 2.x
- FSP Hydro K PRO 750W
- ATX 2.x
Form Factor
- Antec HCG850 Gold Extreme
- ATX
- FSP Hydro K PRO 750W
- ATX
Single +12V Rail
- Antec HCG850 Gold Extreme
- Yes
- FSP Hydro K PRO 750W
- Yes
12V-2x6 Connectors
- Antec HCG850 Gold Extreme
- 0
- FSP Hydro K PRO 750W
- 0
Zero-RPM Mode
- Antec HCG850 Gold Extreme
- Yes
- FSP Hydro K PRO 750W
- No
Sleeved Cables
- Antec HCG850 Gold Extreme
- No
- FSP Hydro K PRO 750W
- No
PCIe 8-pin Connectors
- Antec HCG850 Gold Extreme
- 6
- FSP Hydro K PRO 750W
- 4-33%
Connector Count
- Antec HCG850 Gold Extreme
- 1x 24-pin ATX, 2x EPS 4+4, 6x PCIe 6+2-pin, 10x SATA, 6x Molex, 1x FDD
- FSP Hydro K PRO 750W
- 1x 24-pin ATX, 2x EPS 4+4, 4x PCIe 6+2-pin, 8x SATA, 2x Molex, 1x floppy
Fan Size
- Antec HCG850 Gold Extreme
- 135 mm
- FSP Hydro K PRO 750W
- 120 mm
Fan Model / Bearing
- Antec HCG850 Gold Extreme
- 135mm fluid dynamic bearing
- FSP Hydro K PRO 750W
- 120mm hydraulic bearing (HYB)
EPS 8-pin Connectors
- Antec HCG850 Gold Extreme
- 2
- FSP Hydro K PRO 750W
- 2
SATA Connectors
- Antec HCG850 Gold Extreme
- 10
- FSP Hydro K PRO 750W
- 8
Molex Connectors
- Antec HCG850 Gold Extreme
- 6
- FSP Hydro K PRO 750W
- 2
Cable Lengths
- Antec HCG850 Gold Extreme
- 24-pin 600mm, EPS 650mm, PCIe 600mm, SATA 600-750mm
- FSP Hydro K PRO 750W
- ATX 550mm, EPS 600mm, PCIe 600mm, SATA 500-750mm
Length
- Antec HCG850 Gold Extreme
- 160 mm
- FSP Hydro K PRO 750W
- 140 mm
Colour
- Antec HCG850 Gold Extreme
- Black
- FSP Hydro K PRO 750W
- Black
Fan Bearing
- Antec HCG850 Gold Extreme
- Fluid Dynamic
- FSP Hydro K PRO 750W
- Hydro
Topology
- Antec HCG850 Gold Extreme
- Full-Bridge LLC + DC-DC
- FSP Hydro K PRO 750W
- Double Forward + DC-DC
Modularity
- Antec HCG850 Gold Extreme
- Fully Modular
- FSP Hydro K PRO 750W
- Semi-Modular
Protections
- Antec HCG850 Gold Extreme
- OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
- FSP Hydro K PRO 750W
- OCP, OVP, SCP, OPP
Price
- Antec HCG850 Gold Extreme
- 119.99 USD
- FSP Hydro K PRO 750W
- 64.99 USD
Warranty
- Antec HCG850 Gold Extreme
- 10 yearsBest
- FSP Hydro K PRO 750W
- 5 years-50%
Which one should you pick?
Choose Antec HCG850 Gold Extreme if you want the higher wattage (850 W vs 750 W), the higher PCIe 8-pin connectors (6 vs 4) and the higher warranty (10 years vs 5 years).
Choose FSP Hydro K PRO 750W if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | Antec HCG850 Gold Extreme | FSP Hydro K PRO 750W |
|---|---|---|
| Amazon | $119.99 View on Amazon | |
| Consumercarts listing | $64.99 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
Antec HCG850 Gold Extreme
8.1 / 10 Expert Rating
A well-priced step below the HCG1000 with the same ATX 3.0 platform and 10-year warranty, right for RTX 4080-class builds.
FSP Hydro K PRO 750W
7 / 10 Expert Rating
A solid 750W Bronze-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.




