Thermaltake ToughPower 1200W

Having a PSU that is rated at 1200 watts is a big deal. Having a PSU that will give you 1200 watts under stressful conditions is quite another. We put the Toughpower 1200w into the oven and see if it stands up to its 1200 watt power claims. Don't miss this one.



This was our first look at a product from Thermaltake and CWT; CWT being the manufacturer behind many of Thermaltake's new power supplies. The Thermaltake Toughpower 1200w is possibly the most interesting power supply we have tested to date given its paper specifications. The Toughpower 1200w is also the largest capacity power supply we have tested to date eclipsing the 1000w range at 1200w. Following our Enermax Galaxy DXX review the bars for 1000w and up power supplies were left exceedingly high.

HardOCPآ’s testing methodology is intended to very much push power supplies to their advertised wattage rating in temperatures that will represent some of the hottest computer enthusiast cases. So if a unit passes all our testing it is definitely not something to take lightly. In fact we expect more power supplies to fail our testing than make it through unscathed.

The Thermaltake Toughpower 1200w started off our testing by announcing itself as the new "lead dog" with paper specifications that quite literally looked too good to be true by offering 100A on the 12v rails. Then we began examining the unit and those آ“too good to be trueآ” specifications began to look only slightly too good to be true. The unit is very well built by CWT, regarded for having good designs but sometimes plagued by component selection. The Toughpower 1200w however completely answered the component selection issue with its build in large part by using high quality Japanese capacitors. Following the build examination we were left with what should be a serious contender for the as it stepped into our load testing.

Once our performance testing began, any doubt about the Toughpower's paper specifications disappeared. During our 120v load testing the unit maintained extremely good output voltages with none of the 12v rails dropping more than 0.3v over a range of 90A combined. That fact alone is amazing but it didn't end there. Once we began the 100v testing the unit mirrored its 120v performance with extremely good output voltages again dropping less than 0.3v on the 12v rails. The 3.3v and 5v rails carried far lighter loads comparatively but they performed exceptionally well.

The final raw performance feather in the Toughpower's cap is indeed the Coup de grأ¢ce:

As the video indicates, much to our amazement, the Toughpower 1200w is indeed capable of producing its rated 100A output as I was able to push the unit to 100A by dropping the 3.3v, 5v, and +5vsb loads and loading the PCI-Express connectors, ATX, and EPS connectors to 100A at 49c. This feat did push the Toughpower beyond its rated output by ~16w but for the ~20 minutes I tested it the unit did not flinch. This feat is outright amazing and a testament to how far Thermaltake has come and what a good CWT design can do. At this time there is no consumer power supply available on the retail market with advertised 12v load specifications close to the Toughpower 1200w let alone delivering on them in our testing procedure.

This leads us to the part of the Thermaltake advertising that has tripped up most companies, efficiency. In various places the Toughpower is billed as being anywhere from 80% to 87%+ efficient. The low end of this range is almost what we would call expected in this era with power supplies as manufacturers have been pressing units through the 80 Plus program, but 87% is surpassing the numbers associated with the longtime "king" of efficient power supplies Seasonic. With this in mind we approached the Toughpower with a skeptical eye as surely this was only marketing, right? Wrong. At no point during our testing did the Toughpower even bottom out at 80%. The lowest efficiency numbers we could get out of the unit were ~82% at a 1199w load at 100v input. The unit peaked at 87.5% efficiency during the 120v testing when running a load of 609w. These numbers for a SMPS are just amazing. Until now a consumer power supply being 87% efficient was unheard of.

The Bottom Line

What Thermaltake has managed to dish out to the competition by introducing the Toughpower 1200w is nothing short of brutal. Thermaltake has brought a PSU to retail that is so potent that the Toughpower 1200w will be a tall order for the competition to surpass in terms of quality and living up to the specifications printed on the packaging; both of which we find incredibly important. The Toughpower 1200w is still so new that it is hard to source, but certainly that will change shortly as it shows up at retailers. At $350 to $400 it is very expensive, but you do get what you pay for. The value and power that the Toughpower 1200w delivers is currently unmatched. Few users will need a power supply of this magnitude, but undoubtedly many will desire it.

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Thermaltake Toughpower 1200w - W0133RU


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