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Best 1000 - 1200 Watt Power Supply 2014 - PSU Reviews

Updated on February 21, 2014

A Review of the Top Rated High Efficiency Power Supplies for 2014

A high capacity power supply in excess of 1000 watts is necessary for only the most demanding of PC builds. For those of you who need a high capacity PSU I'll highlight ten of the top rated power supplies and give you a chance to vote on the best 1000 watt PSU of 2014. I'll also give a brief explanation of power supply efficiency.

Understanding PSU Efficiency

80 Plus Certified Chart Source:
80 Plus Certified Chart Source:

You've probably seen power supplies advertised as 80 PLUS, Gold, Platinum etc... but do you know how it all really works? If not, then here's a quick explanation of how it all works:

Already know what you need to know? Jump to the top ten 1000 watt power supplies.

Calculating the Heat Dissipation of a Power Supply

At 80% Efficiency a 500 watt power supply draws 625 watts from the main and therefore dissipates 125 watts as heat. You can calculate this by simply taking the output divided by the efficiency rating.

Did you know that power supplies give you different levels of efficiency based on their output?

Power supplies are most efficient between 50-75% of total load and less efficient at lower loads or at maximum output. I've noticed that this is especially the case for power supplies which are not 80 PLUS certified. 80 Plus PSU are at least 80% efficient at 20, 50, and 100% output; however, with an non-certified PSU it's a bit more of a guessing game.

The chart above is from Plug Load Solutions where you can find a list of all the 80 Plus certified power supplies and learn more about how they run their certification test. The picture shows the qualifications for consumer (115V) and data center level (230V) power supplies at different ratings.

Best 1000, 1100, and 1200 Watt Power Supplies / PSU 2014 - #1 Corsair Professional Series - 850 - 1200 Watts

Don't like the order of this list? Vote below to change it and leave a comment with your thoughts!

Corsair Professional Series  AX 1200 Watt ATX/EPS Modular 80 PLUS Gold (AX1200)
Corsair Professional Series  AX 1200 Watt ATX/EPS Modular 80 PLUS Gold (AX1200)

Because of the high-quality Japanese capacitors used with its Professional Series PSU Corsair offers a 7 year parts and labor warranty for its 90% efficient power supply. In my opinion, it's the most trusted in multi-GPU Crossfire/SLI builds.


#2 Cooler Master Silent Pro Gold - Available From 800-1200 Watts

Cooler Master Silent Pro Gold 1000W 80 PLUS Gold Power Supply with Modular Cables (RSA00-80GAD3-US)
Cooler Master Silent Pro Gold 1000W 80 PLUS Gold Power Supply with Modular Cables (RSA00-80GAD3-US)

This partially modular PSU is a good value for the money. Like the Corsair Professional series they use Japanese capacitors and have a MTBF of above 100,000 hours. It comes with a five year parts and labor warranty.


#3 PC Power and Cooling Silencer Mk II - From 650-950 Watts

Despite this model being advertised as 950 watts it still deserves a place on this list. PC Power and Cooling continues to be a model citizen in a world of false advertising and overly pushed numbers. You can expect to get more out of their products and this particular one will give you up to 88% Efficiency for a very long time.

#4 Seasonic PLATINUM - For Durability and Quality...

If you're a PC building enthusiast, then you know that this Seasonic Platinum model is as efficient and durable as consumer models come.

#5 KingWin Lazer Power Supplies

Works well and makes your PC really stand out. The Lazer is also 80 Plus Bronze certified.

Who Makes the Best 1000 Watt Power Supply?

Leave a comment if your favorite brand or power supply didn't make the list!

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