Seasonic M12II or G550

XFA24 · Mar 17, 2013

*Links are for references only
($99)Seasonic M12II --> http://www.seasonicusa.com/M12II-Bronze.htm

($104)Seasonic G550 --> http://www.seasonicusa.com/G-series-450-550-650.htm

Both are reputable brands, both are semi-modular... they differ in their output power, they differ in 80 PLUS certification, and the G550 has gold plated terminals wherein the M12II does not have...

so should I buy the Seasonic M12II(620W) or should I buy the Seasonic G550(550W)

-Thank You in Advance!

TheBigTroll · Mar 17, 2013

neither. get the xfx 550w for 59.99. same thing as the seasonic m12 just non modular and a hell of a lot cheaper

XFA24 · Mar 17, 2013

did u mean the XFX Pro 550w Core Edition?

Dark Lord of Tech · Mar 17, 2013

Seasonic makes all xfx power supplies

http://whirlpool.net.au/wiki/psu_manufacturers

XFA24 · Mar 17, 2013

oooooooooohh

XFA24 · Mar 17, 2013

but how about the 80 PLUS GOLD Certification on the G550, do I have to consider the 80 PLUS Certifications when buying a PSU?

jnkweaver · Mar 17, 2013

Yes you do.

Gold certification means it is at least 90% efficient at 50% of its rated wattage (at 115V 92% efficient at 230V)
http://en.wikipedia.org/wiki/80_Plus

I always try to buy gold or platinum power supplies.

Dark Lord of Tech · Mar 17, 2013

EzioAs · Mar 17, 2013

The G550 is a way better unit (tight voltage regulation and ripple suppression). Plus, it's 80+ Gold and a newer unit so it's bound to be more expensive than the M12II. But, if you don't really mind those things (but you should), you can't go wrong with the M12II or the XFX one.

envy14tpe · Mar 17, 2013

My vote is G550. Actually, I wish I would have bought this for a little more than my Bronze one (S12II 520W). The less heat generated is desirable. Where I live the difference is $15.

djangoringo · Mar 17, 2013

http://www.hardocp.com/article/2011/10/04/80_plus_irrelevant_to_you_when_buying_psu/2#.UUaQGReuSSo

What matter is the quality of the psu and its electrical performance, of course, if you find a cheap quality psu with plus gold certificate, it's* a chance not to be missed, the Seasonic G550 is at a good price and it's cheaper than the m12ii 620.
Pcpartpicker tells me it's around 80-90$ : http://pcpartpicker.com/part/seasonic-power-supply-ssr550rm

While the M12ii 620 is $99.48 : http://pcpartpicker.com/part/seasonic-power-supply-m12ii620bronze
(out of stock in superbiiz, newegg with shipping it's $100.17)

envy14tpe · Mar 18, 2013

I always thought the efficiency was great in terms of the decrease in heat generated. The higher the efficiency the less heat generated inside the case (and less heat that surrounds the GPU, which is already hot). Sounds good to me.

TheBigTroll · Mar 18, 2013

i would never pay double for something that is only 5% better

envy14tpe · Mar 18, 2013

TheBigTroll :

Totally agree. However, OP is comparing two models that are almost identical in price but one produces less heat and wastes less power.

TheBigTroll · Mar 18, 2013

true, but why not spend less on another unit

djangoringo · Mar 18, 2013

If the op wants a modular psu(the plus gold certification comes as an extra), the seasonic G550 is a good choice, if he doesn't, the xfx 550 core edition is cheaper, with still good efficiency levels.
Also, it might be useful to know what kind of system it will be powering, also if you plan to add a SLI/Crossfire of x or y card.

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Seasonic M12II or G550

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