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Compare Fractal Design Ion 3 Gold 1000W White vs SeaSonic M12II-850

Fractal Design Ion 3 Gold 1000W White and SeaSonic M12II-850 are both power supplies with the same EPS Connectors (2). The main differences are in Wattage, Modular, Efficiency and PCI-Express 16 Pin 12VHPWR Connectors.

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Fractal Design Ion 3 Gold 1000W White

SeaSonic M12II-850

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Pangoly Score (How do we rate?)

89

Brand

Fractal Design

Brand

SeaSonic

Model

FD-P-IA3G-101
FD-P-IA3G-101-EU-WT

Model

SS-850AM

Release Date

📅 November 2025

Release Date

📅 December 2011

* First availability for purchase, it may not correspond to the actual market launch date.

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User reviews

★★★★☆

(29 reviews)

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Price history

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Price history

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Compatible PC parts

Graphics Cards ► Cases ►

Compatible PC parts

Graphics Cards ► Cases ►

Wattage

1000 W

Wattage

850 W

Type

ATX

Type

ATX

Modular

Full

Modular

Semi

Efficiency

80+ Gold

Efficiency

80+ Bronze

Output

-

Output

+3.3V@25A, +5V@25A, +12V@70A, -12V@0.5A, +5VSB@3A

PCI-Express 16 Pin 12VHPWR Connectors

1

PCI-Express 16 Pin 12VHPWR Connectors

0

PCI-Express 12 Pin Connectors

0

PCI-Express 12 Pin Connectors

0

PCI-Express 6+2 Pin Connectors

3

PCI-Express 6+2 Pin Connectors

4

PCI-Express 6 Pin Connectors

0

PCI-Express 6 Pin Connectors

0

EPS Connectors

2

EPS Connectors

2

SATA Connectors

10

SATA Connectors

8

Molex Connectors

2

Molex Connectors

5

Length

150 mm

Length

160 mm

Options (3)

	Black 750 $119.99
	Black 850 $129.99
	Black 1000 $159.99

Options (2)

	520W
	620W

Comparison and key differences summary

Reasons to buy the Fractal Design Ion 3 Gold 1000W White:

Newer Product, it was released around 14 years later
+150 Watts available
Fully modular power supply
Better 80 Plus efficiency
+2 SATA connectors available

Reasons to buy the SeaSonic M12II-850:

44% cheaper, you can save $70.09
+1 PCI-Express 6+2 Pin connectors available
+3 Molex connectors available

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