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Thermaltake Litepower 450W Power Supply Review

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Environmental Factors:

The packaging of the Thermaltake Litepower 450W is basic but adequate, and with excellent efficiency and power factors levels, thoroughly deserves its Thermaltake Eco-Friendly logo.


Price Per the Watt:

Power Supply Thermaltake Litepower 450W at $79.99 = $0.18/Watt (April 2009)


The performance of the Thermaltake Litepower 450W is excellent, and in combination with its 80 Plus Bronze certification, it is one of the better performing power supplies I have tested. The DC quality is excellent, and efficiency is exceptional for a power supply in this class, probably with few equals.

The Thermaltake Litepower 450W has only one 6-pin PCI-E connector, which will limit the graphics cards that can be used with this power supply. The Thermaltake Litepower 450W will be more than capable of powering any high-end single graphics card configuration - and with an adapter cable, preferably on an unused 4-pin peripheral chain, a mid-range SLI or CrossFire system. The advice I would always give before purchasing any power supply is any time spent researching any configuration and associated power requirements is always time well spent.

The Thermaltake Litepower 450W's performance is excellent, but at $79.99 it is, in my humble opinion, a little too expensive for a power supply in this class. There are more power supplies to choose from in the 400~500W class than any other, and a multitude of similar high quality power supplies are available at significantly lower prices. If money is no object and you require the best in terms of electrical performance, then I would not hesitate to recommend the Thermaltake Litepower 450W. But, when good quality power supplies with fully sleeved cables and a nice paint job can be had for $60~$70, it is a difficult power supply to recommend. If the Thermaltake Litepower 450W was priced at around $69.00 and came with fully sleeved cables and a quality paint job, then I would not hesitate in giving an OCC Gold, perhaps even an Editor's Choice award, but the selling price and use of cable ties instead of sleeving, in my opinion, just let down what could otherwise be one of the best. Performance second to none, poorly finished and, in my opinion, a little too expensive.



  • Excellent DC voltage load regulation
  • High efficiency meeting its claimed 80 Plus Bronze certification
  • Low AC ripple/noise levels
  • Quiet
  • Active PFC
  • 5 year warranty



  • Expensive
  • Unsleeved cables
  • Unpainted case


OCC Silver

  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specifications & Features
  4. Testing: DC Voltage Load Regulation At 110VAC & 230VAC
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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