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Sapphire Pure 1250W Power Supply Review

Price: £218.99


Sapphire, probably better known for their high quality graphics cards, have recently introduced a new line of power supplies for the PC gamer, builder and enthusiast. The Pure PSU range is available in four variants from the workstation orientated Pure 650W, up to the top of the range Pure 1250W aimed at the power user. The Pure range offers efficiencies up to 80 Plus Silver, modular design, multiple 12V rails, LED cooling fan, active power factor correction and universal mains input capability. The Sapphire Pure 1250W is, according to the packaging, CrossfireX Ready and works with nVidia SLI. I can't see any official logos to back up these claims but, depending on how this power supply performs, does it really matter? Just because a power supply doesn't carry the official Crossfire or SLI Ready logo doesn't mean the power supply isn't capable of supporting the technology.

This is the first Sapphire power supply I have reviewed and 1250W is going to present a few challenges, so let's have a look at the unit and see how well it performs.

Closer Look:

Based on a satin black background theme the packaging of the Sapphire Pure 1250W really catches the eye. The top of the box carries a computer generated image of a tractor unit perhaps meant to reflect the power inside the box. A revolution counter type dial in the top corner is used to illustrate a claimed efficiency of up to 91% with a list of the main features given underneath down the left-hand side. Along the top edge is the Sapphire logo and power supply model and power rating with a small photograph of the power supply along with a 80 Plus Bronze logo completing the picture. The base of the box gives a complete list of power supply features along side a couple of photographs, one of which repeats the lid tractor unit image and another showing the Sapphire Pure 1250W power supply next to a black computer enclosure with red flame paint job down the side.




The edges of the box show the specification table and a complete list of all the available connectors with illustration photographs.



The same Pure 1250W logo is used on the front and inverted on the rear, so no need to show both sides.


Lift the lid and there are two more boxes bearing the Sapphire logo.



The larger box contains the plastic bag enclosed power supply inside a cardboard sleeve, user manual, power cord, a black Velcro sealed wallet for the modular cables and a small plastic bag containing four power supply mounting screws and a couple of ATI case badges.



The smaller cardboard box contains the modular cable set and a few cable ties to help tidy things up once the power supply is installed.


The packaging of the Sapphire Pure 1250W power supply is to a very high standard using sturdy cardboard boxes and contains everything needed for a successful installation, so let's move on and have a closer look at the power supply.


  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & 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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