Originally Posted by qwan456
Don't use the 80+ certification as an deciding factor of purchasing a PSU. It is an aspect in choosing a PSU, but it doesn't determine the unit overall quality. You could have a highly efficient power supply, while it is poor in everything else. There's are also some who lie/cheated the 80+ certification, when a unit that supposed to be a bronze unit was marked up as a gold unit.
Check this thread out for some PSUs that are recommended. http://www.overclock.net/t/183810/faq-recommended-power-supplies
sonarctica, it's like I told you before: the 80+ certification is mostly marketing hype. There are 80+ Gold power supplies that are complete junk and should be avoided at all costs. For example, the 1100W ABS Majesty:
http://www.hardocp.com/article/2010/01/22/abs_majesty_mj1100m_1100w_power_supply_review/9 (the "conclusion" page)
If you go by the 80+ certification, then you may as well go by other trivial things such as the PSU's color, or even the fancy name given to the PSU. The only thing that matters is what's inside the outer casing of the power supply. The rest is just fluff (except, maybe, for whether or not it's a modular PSU).
Now, please don't get me wrong: I'm not saying that the efficiency of a PSU is absolutely unimportant because it can be very important, especially if you're the one paying your electricity bill and you need to do absolutely everything you can to lower it - even if it means lowering it by just a very tiny amount. For a situation like that, you'd try to focus your shopping on the most efficient power supplies. Here's why:
Let's pretend that your system pulls exactly 500W from a power supply while playing Crysis 2 (stay with me here, even if you don't play Crysis 2 - I'm just making an example). Here is how much power would have to be pulled from the wall outlet at the varying efficiencies below in order to deliver 500W to your system:
- 80% - Exactly 625W
- 85% - 588 - 589W
- 90% - 555-556W
(Note: This has nothing to do with a PSU's capacity. An 80+ efficient 550W power supply will pull 625W from a wall outlet in order to deliver 500W to your system)
So as you can see, the 80+ certification is not as important as the industry is making it seem (it's marketing hype). Not only that, but a PSU's quality can not be determined by its 80+ efficiency certification (as seen from the quick example of the 1100W ABS Majesty). Unfortunately, the only way to determine a PSU's quality is by asking around and by looking at professional review sites who know how to review and test a power supply. So, you'd also have to ask around to learn which review sites are good and which aren't.
Edited by TwoCables - 10/25/12 at 1:39am