Seasonic Prime Gold & Platinum review: gold with platinum characteristics

Excellent power supplies, although the added value of Platinum is limited

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Photos and specifications

The Prime Gold and Platinum power supplies are available in 650, 750, 850, 1000 and 1200 watt; the specifications of the Gold and Platinum versions are identical to each other. The only difference between the models of the same output is the promised efficiency. All power supplies have a single 12 volt rail that can supply 54, 62, 70, 83, or 100 ampere respectively. On the 3.3 and 5 volt outputs the 650, 750 and 850 watt models can supply 20 ampere, while this is increased to 25 ampere with the 1000 and 1200 watt versions.

In terms of aesthetics the power supplies are nearly identical. On the back we find the power socket and power switch, as well as a 'hybrid-mode' button that you can use to let the power supply operate in semi-passive mode; this is the same on all versions. The back also has a lot of perforations, which results in a good airflow without the need for the built-in fan to supply a lot of pressure.

Seasonic Prime Gold 650W Seasonic Prime Gold 750W
Connectors 650 watt (left) and 750 and more (right).

If we turn the power supplies around we find the sockets for all of the cables that connect to the components in the computer. All power supplies are completely modular and, aside from the (separated) 20/24-pins connector that supplies the motherboard with power, all power supplies also offer four (650W) or five (750 watt and more) 6-pins IDE / SATA / MOLEX outputs and four or six 8-pins CPU / PCI-E outputs. Every output can be used to connect multiple devices and depending on the model of power supply Seasonic adds different cables in the box. This results in three to five molex-connectors, six to twelve times SATA-power and four to eight 6/8 pins PEG connectors. 

Click here for a complete table with the specifications of all of the tested Prime Gold and Platinum models (opens in a new tab).

Seasonic Prime Gold 1200W


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