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Seasonic M12II 520 or Seasonic X-650?

post #1 of 21
Thread Starter 
I want to replace the PSU in my sig rig since my current PSU has seen about four and a half years of service. I'm pretty sure my system currently sips power and these PSUs are overkill, but I want modular, and these seemed the best for the prices, and I haven't found any 450W modular PSUs. Seems like there is a Watts war going on in the PSU biz.

My main question is:
Will the $130US X-650's Gold efficiency justify its premium by saving me $30 more than the $100 M12II with it's Bronze rating in the 3-5 years I foresee using it? I don't have a Kill-a-Watt, so I don't know exactly what power my system uses currently. I tend to run my rig 15-17 hours each day.

I want the X-650 due to its coolness factor and its full modularity making cable management easier, plus its reputation as the king of 650W PSUs. But I also want it to be worth the 30% markup and save me money over time. If it's not, I like having the extra $30 to spend.

What do you think?
(My predicted recommendation: "You already know what you want, so just suck up the extra $30 and get the X-650 because it really is awesome.")

Thanks!

-dx
P.S.

More details that might be helpful for your consideration:

My near-future rig plans are a possible OC of my Regor 255 to 3.5-3.7GHz (whatever a good $20-$30 air-cooler can get me to). Further ahead I'm thinking of moving to an i5 Sandy Bridge (K-version for possible OC'ing), the requisite new mobo, 4 sticks of DDR3, one or two more SATA 7200RPM HDDs, and if prices plummet, an SSD for the OS and programs. I really think a quality 400-450W PSU could power all this, but I haven't found any that are modular. If they exist and are cheaper and high-quality, let me know.

I'm not a gamer. If I ever acquire the bankroll needed to create a crazy-awesome gaming system, it's probably all going into a camera lens or an HDTV and a console.

I may eventually invest in a discrete GPU since I do like to blow off stress occasionally by gunning down bots in CS:S, but my IGP might be enough for me on such an old game. I don't see getting any GPU more Watts-hungry than an HD5670 or whatever's selling for $60-$80US when I upgrade, if I ever do.

My most demanding usage concerns are for photography: browsing huge image files and editing them in Photoshop. These actions tend to benefit from lots of RAM and CPU threads, and almost not at all from GPU power.

Edited by dxdn - 3/3/11 at 8:53pm
    
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post #2 of 21
Over a 3-5 year period, you'll save more than $30. However, you system is specc'ed low enough that any savings that come through will be negligible throughout the life of the PSU. IIRC Seasonic makes a 400W version of the X Series, which is also passively cooled to boot. Edit: nvm, its $129. I would recommend the M12II 520 since the extra features aren't really necessary for your needs, unless of course, your e-peen needs stimulation.
Edited by Eugenester - 3/3/11 at 9:02pm
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post #3 of 21
You or may not know this, but PSUs tend only hit peak efficiency at certain loads, so it won't be hitting those bronze or gold efficiency ratings when idle (most of the time).

Honestly, you probably won't save much in terms of electricity.
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post #4 of 21
Quote:
Originally Posted by quaaark View Post
You or may not know this, but PSUs tend only hit peak efficiency at certain loads, so it won't be hitting those bronze or gold efficiency ratings when idle (most of the time).

Honestly, you probably won't save much in terms of electricity.
Peak efficiency is usually at around 50% rated output.
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post #5 of 21
Thread Starter 
Out of curiosity, do you guys have any idea what my system is probably pulling in terms of Watts?
    
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post #6 of 21
Around 100-200 watts I'd say.
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post #7 of 21
just a pointer, the full modularity is a bit of a ripoff, at least that's what i came out of it with. ('tis an opinion befoire someone tries flaming me)

you still need the 24-pin ATX connector, a PCIe connector for graphics, and the connectors to power SATA HDD's etc, so you don't end up saving all that many cables over a partly modular PSU with those connectors built in.
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post #8 of 21
Quote:
Originally Posted by -iceblade^ View Post
just a pointer, the full modularity is a bit of a ripoff, at least that's what i came out of it with. ('tis an opinion befoire someone tries flaming me)

you still need the 24-pin ATX connector, a PCIe connector for graphics, and the connectors to power SATA HDD's etc, so you don't end up saving all that many cables over a partly modular PSU with those connectors built in.
Well for me it's the fact that it looks better than a bunch of tentacles grouped together in one circle, but maybe that's just me...
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post #9 of 21
The X650 platform if I'm not mistaken performs a bit better than the M12II platform.
    
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post #10 of 21
Really, a 200w could power your planned rig pretty easily. The TP-650 is $10 cheaper than the M12II if you don't mind a little more hardwired cables.
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