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Seasonic PRIME 1200W Gold Power Supply Review

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Manufacturer: Seasonic

Introduction and Features

Introduction

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Sea Sonic Electronics Co., Ltd has been designing and building PC power supplies since 1981 and they are one of the most highly respected manufacturers on the planet. Not only do they market power supplies under their own Seasonic name but they are the OEM for many other big name brands.

Seasonic began introducing their new PRIME Series power supplies last year and we reviewed several of the flagship Titanium units and found them to be among the best power supplies we have tested to date. But the PRIME Series now includes many more units with both Platinum and Gold level efficiency certification.

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The power supply we have in for review is the Seasonic PRIME 1200W Gold. This unit comes with all modular cables and is certified to comply with the 80 Plus Gold criteria for high efficiency. The power supply is designed to deliver very tight voltage regulation on the three primary rails (+3.3V, +5V and +12V) and provides superior AC ripple and noise suppression. Add in a super-quiet 135mm cooling fan with a Fluid Dynamic Bearing, top-quality components and a 12-year warranty, and you have the makings for another outstanding power supply.

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Seasonic PRIME Gold Series PSU Key Features:

•    650W, 750W, 850W, 1000W or 1200W continuous DC output
•    High efficiency, 80 PLUS Gold certified
•    Micro-Tolerance Load Regulation (MTLR)
•    Top-quality 135mm Fluid Dynamic Bearing fan
•    Premium Hybrid Fan Control (allows fanless operation at low power)
•    Superior AC ripple and noise suppression
•    Fully modular cabling design
•    Multi-GPU technologies supported
•    Gold-plated high-current terminals
•    Protections: OPP,OVP,UVP,SCP,OCP and OTP
•    12-Year Manufacturer’s warranty
•    MSRP for the PRIME 1200W Gold is $199.90 USD

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Here is what Seasonic has to say about the new PRIME power supply line: “The creation of the PRIME Series is a renewed testimony of Sea Sonic’s determination to push the limits of power supply design in every aspect. This elegant-looking, exclusive lineup of new products will include 80 Plus Titanium – in the range of 650W to 1000W, and Platinum-Gold-rated units in the range of 650W to 1200W, with excellent electrical characteristics, top-level components and fully modular cabling.

Seasonic employs the most efficient manufacturing methods, uses the best materials and works with most reliable suppliers to produce reliable products. The PRIME Series layout, revolutionary manufacturing solutions and solid design attest to the highest level of ingenuity of Seasonics’s engineers and product developers. Demonstrating confidence in its power supplies, Seasonic stands out in the industry by offering PRIME Series a generous 12-year manufacturer’s warranty period.

Please continue reading our review of the Seasonic PRIME 1200W Gold PSU!


May 18, 2017 | 11:55 PM - Posted by pdjblum

seasonic never fails to impress

thanks for another much appreciated psu review

still the most important component for me

May 19, 2017 | 11:50 AM - Posted by edwinjamesmiller36

12 yr manufacturer's warranty. somebody believes in their product

May 19, 2017 | 12:35 PM - Posted by khanmein

JonnyGuru stated "PCIe cable wire gauge is too thin for one cable to handle high power cards" for the Platinum & I think is the same with Gold version.

May 20, 2017 | 11:47 AM - Posted by Lee Garbutt

Yes, you are correct - the PRIME Gold Series PSUs use 18 AWG wire like the Platinum Series. That is why I dinged them for daisy-chaining two PCI-E connectors onto one cable as a weakness. For the majority of users who have two high-end (power hungry) video cards, using a dedicated cable/PCI-E connector to all four connectors should be adequate. However IMO that still doesn not excuse Seasonic for putting two connectors on the end of a single 18 AWG cable set on a 1200W PSU.