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Graphics cards & PC upgrades Reviews
15,670 Reviews

Tagan TG780-U33II review

£118 inc VAT

Manufacturer: Tagan

Our Rating: We rate this 3 out of 5

The Tagan TG780-U33II power supply is a high-end model, with a powerful 780W rating designed to cope with heavy-laden PC systems.

The Tagan TG780-U33II power supply is a high-end model, with a powerful 780W rating designed to cope with heavy-laden PC systems.

At £188 the Tagan TG780-U33II may seem expensive, but is also a consistently high performer.

In our tests, the Tagan TG780-U33II proved to be the most efficient PSU we've ever tested using any of our test loads, delivering an impressive 85.6 percent efficiency at 350W and 84.1 percent at 750W.

Voltages also remained good throughout all our tests. The Tagan TG780-U33II PSU is able to maintain efficient operation while delivering maximum power in a way that none of the competition could match.

However, despite its excellent performance and high power specification, the Tagan TG780-U33II is not able to support quad graphics cards due to a lack of available PCI-E connectors. While SLI certification hasn't yet been approved, Tagan claims this power supply will work just fine with dual graphics cards.

The Tagan TG780-U33II PSU's set of captive cables offers fewer connectors then we're used to, with only four SATA connectors and six hard drive connectors, although this should be adequate for most users and, anyway, unused cables usually just get in the way.

See also:

Corsair TX750W review

Coolermaster SilentPro M700W review

BeQuiet DarkPowerPro 750 review

FSP Epsilon 80plus 700W review

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Tagan TG780-U33II Expert Verdict »

780W PSU
ATX12V 2.2
captive cabling
4 SATA connectors
6 hard drive connectors
floppy drive connector
1x 6pin 1x 6+2pin PCI-E connectors
intelligent fan speed control
4x 12v rails
active PFC
1x 120mm fan
3 year warranty
140mm case
80Plus
  • Build Quality: We give this item 8 of 10 for build quality
  • Features: We give this item 6 of 10 for features
  • Value for Money: We give this item 6 of 10 for value for money
  • Overall: We give this item 6 of 10 overall

The Tagan TG780-U33II PSU is an excellent performer, but it's a rather expensive option which lacks some of the convenient features found elsewhere, such as modular cabling.

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