During our tests, we really appreciated the stability of all rails, with heavy loads too… the temperatures were really good and this means that the fans were pretty quiet, so no noise. This is one of the first PSUs from XFX, so we are happy to congratulate them. XFX introduced a really good PSU and we hope that in the near future we will see a few new models like 1000+ W to compete with other big brands. The 80 Plus Silver certification confirms the good quality of this one, we are happy to suggest it if you are looking for a high quality and a good-look power supply to put it in a high end desktop system/gaming/modding platform.

Full Review in Italian

XFX XPS-850W-BES Pluses: Perfect design. Completely stable in out voltage index and no peaks regardless of the workload; peaks and drops level is insignificant even with high load. Silent fan. High performance. A pocket bag to store removable cables. Cables with varied distance between the connectors for optimal placement in the case. Minuses: None found.

Full review in Russian

A powerful and high-quality PSU with an unusual design. You might think that its price is too high, but the cheaper PSUs of the same power have only simple “80 Plus” or “80 Plus Bronze” certification – so they have lower efficiency. Real competitors of 850W Black Edition with 850W of power and “80+ Silver” logo from other manufacturers are usually much more expensive than the XFX PSU.

Game Navigator Magazine - Russia.

The XFX 850W Black Edition came looking to make a splash, and ended up doing a cannonball big enough to just about drown the competition. Voltage regulation is nothing short of fantastic, efficiency is excellent, and ripple and noise is just about nonexistent. There are only a very few units able to compete with the performance of this machine, and I'm giving this unit the same performance score I gave them - 10.

When we hammered load on this unit the noise level was even with the XFX 750W model. We found, in other words, nothing to complain about - neither power supply fan sang more than the other when we fully loaded the system. Since the 750W and 850W Black Edition are basically the same I must also recommend this unit, although it is a bit more expensive than the 750W. It is very well built and has solid lines… for the budget and power needs, (or potential future power needs), it is not wrong to look at the XFX Black Edition 850W.

 Full Review in Swedish

XFX proved it is best by manufacturing a new PSU – the XPS-850-BES is a good competitor to models by other makers. The PSU will attract customers with its unique appearance, rich set of connectors and good features and here we should highlight very stable performance at various workloads.

Full Review in Russian

750W XFX Black Edition is an XFX power supply with 80 PLUS Silver certificate. It is very encouraging to see more and more manufacturers add weight to this and 80 PLUS Silver is more than welcome.. You can actually save quite a lot of money by using an energy-efficient power supply.
XFX also has a very good sleeving stretching all the way into the box. The quality is very good, among the best we've seen / known.

What was then the noise level? It remained constant at a comfortable level without the help of any other fans in the test system (load of two ATI 4890).

Like its higher-rated 850W sibling, the 750W Black Edition flew through the stability tests with ease... The 750W XFX Black Edition power supply is great value for money. If you’re in the market for a 700-799W PSU then it should be at the top of your shopping list.

Magazine Issue # 83, Page 7

An outstanding PSU with superlative efficiency and attention to detail.

XFX has backed up its PSU with a generous five-year warranty, which compares favourably to other performance power supply manufacturers, and helps make the 750W Black Edition the most impressive PSU we’ve seen so far this year.

Magazine Issue 1097 page 64/65.