XFX 650 or SeaSonic X Series 650 Gold?

System: Gygabite 7970 OC. Intel i5-3570k.

Which is better and is it worth spending the extra $20?

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
11 answers Last reply
More about xfx 650 seasonic series 650 gold
  1. Since they are both modular units and XFX PSU's are made by Seasonic, really the only differences are the efficiency rating, the slight cable advantage, and extra 2 years of warranty (7 yrs vs 5 yrs for the XFX) of the Seasonic (branded) unit. Both have outstanding warranties. So if saving a little cash on the electric bill or the few extra connectors matter to you, get the Seasonic. If not, get the XFX...you really can't go wrong with either one.

    http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913-10.html
  2. Thanks, I'm concerned however that 650W isn't enough, will it be enough though?
  3. ESKlassen said:
    Thanks, I'm concerned however that 650W isn't enough, will it be enough though?


    Good quality PSU with 500-600w is more than enough unless if you set up SLI/Crossfire. The two in the above should sufficient enough.
  4. I don't know your full system specs, but if you use pcpartpicker.com , it will calculate your power usage for you in the upper right corner of the screen as you add your parts. Once you have that total, i would add maybe 20-25%, as most power supplies rated efficiency is at roughly an 80% load. XFX and Seasonic both have 750 watt models available too (and higher, of course). Hope that helps!
  5. Hmm it says about 406. I would have 650 with either one of them and they're both modular. So even 50% more (around 609W) it isn't fully used.

    That was calculated with the processor, graphics card, operating system, RAM anything I'm missing?
  6. Hard drives, SSD's, Optical drives, etc...anything that uses power.
  7. Take this: http://www.extreme.outervision.com/psucalculatorlite.jsp

    But you have to know for how far you want to OC CPU to 4500 MHz and 1.25V (stably point) CPU normally 110W high point CPU OC and 90W for GPU OC totally 200W to 210W OCing + Other component.
  8. Tbh I can't do anything at all on that site, won't let me click anything..
  9. I would say that the 650 watt models would be fine unless you're planning multiple video cards or a serious overclock. You have roughly 200-250 watts of headroom without OC'ing. If you're worried about it, bump up to the 750 watt models. I always go with more than i need (within reason), with future upgrades in mind. These are quality PSU's that should be good for many years..better to go with too much capacity than not enough.
  10. Thing is, I won't upgrade in another 4-5 years... so the question is, will this PSU do it for my current system? (no overclock, crossfire...)
  11. ESKlassen said:
    Thing is, I won't upgrade in another 4-5 years... so the question is, will this PSU do it for my current system? (no overclock, crossfire...)


    It will be fine, I would advise going with an 80 PLUS Gold with modular installation if you won't be upgrading for a few years. The PSU will generally perform better and save power vs the price difference of a cheaper one in electric bills.
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