Best 850W power supply

Discussion in 'Power Supplies' started by Cometer, Apr 6, 2009.

  1. Cometer

    Cometer Member

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    I'm looking for the best 850W Power supply.
    I'm considering the Corsair TX 850W. But at my retailer theree are other options like the Antec truepower 850W (more expensive than the corsair) and many others.

    What is for you guys the best 850W power supply out there?
     
  2. Beanie46

    Beanie46 Senior member

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    Depends upon your definition of best, but so far, little else has held a candle to the Antec Signature 850 for voltage regulation, ripple and noise, and quietness. Of course, there is a price to be paid for it, expensive, but if you want best, you have to pay for best (~$250.)

    Other choices.......Seasonic M12D 850W---not quite as clean running as the Antec Sig, but very, very close, as is its price (~$299); I'd probably also include the Enermax Revolution 85+ 850W, based on the 1050W reviews---another very high end power supply, but again, costly (~$289.)

    Personally, if you can do without the snob appeal of having the absolute "best" and will instead take the savings and move up in video cards or cpus, you'd probably see more benefit from doing that. If that's your route, then the Corsair 850TX is about unbeatable at $120 after rebate for its performance.

     
  3. Cometer

    Cometer Member

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    I'm planning on building an enthusiast computer. GTX 260 - 216 SLI, core i7 920. I'll overclock both the gx and the 920. Do you think I'll have any issues if I pick the Corsair?

    I'm checking my supplier, but I only see the Antec Truepower Quattro 850w Modular. What is your opinion on that one ?

    The power supplies I get access to are at the following link

    http://www.pccomponentes.com/F...ES_ALIMENTACION-3.html

    Any good one you would recommend on that list?

     
  4. theAnimal

    theAnimal Diamond Member

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    The TPQ 850 is a good PSU, but I would choose the Corsair unless you want modular.
     
  5. Cometer

    Cometer Member

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    Modular would be good to keep the case clean for a higher air flow. I'm using the CM 932 HAF case. But I'm a bit afraid that I could have problem OC and all that if I go towards a less reliable power supply just because I preferred modular.
    DO you think I would have any issues if I picked the Antec TPQ 850 vs the Corsair?
     
  6. Tboy012

    Tboy012 Member

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    If your going to be spending more then $230 for a psu, might as well pick up the Corsair HX1000. At least this way, you have more headroom for more parts and oc'ing w/out running into problems
     
  7. CurseTheSky

    CurseTheSky Diamond Member

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    You'll have no issues at all. In fact, you won't need anywhere NEAR 850w... more like 450w or less.

    To have enough headroom for future upgrades (SLI, etc.), 850w isn't a bad choice if you have the cash sitting around. If it's putting any kind of dent in your budget, you'll do just fine with a 500w, 650w, 750w, etc.

    The Corsair would be a great choice.
     
  8. Tboy012

    Tboy012 Member

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    Please help me understand this CurseTheSky..

    How is it possible that i920 + 260-216 sli rig can be handled by a psu with a rating of 450?

    OP also mentioned in his other thread that he will be oc'ing his cpu, which is known to reqiure alot of power.
     
  9. cbn

    cbn Diamond Member

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    http://www.anandtech.com/video/showdoc.aspx?i=3520&p=11

    According to this a Core i7 running @ 3.2 GHz and running two 260 GTX uses only 396 watts at full load. So maybe the power supply needs to be a little bigger than 450 watt (but not by much)

    Actually wouldn't a 850 watt power supply be more for quad sli with two 295 GTXs?
     
  10. Beanie46

    Beanie46 Senior member

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    Unfortunately, what you've linked to is a stock speed system, an i7 965 cpu running at stock voltage and stock speeds, along with the video cards at stock voltages and speeds, completely ignoring the OP's "I'm going to overclock the cpu and gpu's..." comment.

    OC'ing the i7 cpu requires increasing the core voltage and i7's use a LOT of power when overclocking, and generate a lot of heat, too.

    This also doesn't take into account that two 260-216 cards running overvolted to OC them also adds to the ps output requirements.


    Using the Extreme Outervision wattage requirement guesstimator, putting in an i7 920 OC'd to 4GHz on 1.3V (admittedly undervolted for such an ambitious overclock), 3 sticks of DDR3 RAM, two 260-216 video cards in SLI, two SATA hard drives, three 120mm fans, one PCI-e x1 card...for sound card, 90% system load gives a recommended PSU wattage of 602W. Not wholly unrealistic power requirements or system setup.

    To think that an OC'd i7 with two OC'd 260-216 video cards would run smoothly on a 450W power supply is just beyond reason. Even if it did run, the power supply would be so close to running at 100% of rated output its life would be quite short indeed and would be at the worst end of efficiency, ripple and noise generation, and at the highest end of heat generation.

    Honestly, trying to run his system with a small power supply, like a 450-500W unit, is just being penny-wise but pound-foolish. I cannot believe in this day and age people still advocate tying to save a couple of dollars on one of the most important pieces in a computer....the power supply.

    Since power supplies are at their most efficient running at 50-60% of rated output, wouldn't it make sense to buy a little larger to get into that sweet spot of efficiency, not to mention having the ps run cooler, quieter, less stressed, and leave room for future expansion instead of running it at its ragged edge and have to replace it the next time the video cards are upgraded or cpu is upgraded?

    Buy the Corsair 850TX.....it's not horribly expensive, has a solid +12V rail, good specs, has tested out very well on JonnyGuru, will run in the system you're building at under 60% of rated capacity, leave room for expansion, and not make you spend your money twice down the road.
     
  11. rarebear

    rarebear Senior member

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    I have the Corsair I got at newegg.com for $109 AR
    Its now $119 AR
    http://www.newegg.com/Product/...x?Item=N82E16817139009

    As far as extra wires it has many but what I did is tape them to the back side or the mobo panel and the side cover hides thems..

    There is a lot of wire to hide butI have more masking tape than $$$ :)
     
  12. starfireone

    starfireone Member

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    I agree better to have more than less. Never heard anyone complaining that
    they have too large a PSU. I always believe in having room to grow down the
    road. This way I save bucks and don't have to replace something as fast.

     
  13. imported_Scoop

    imported_Scoop Senior member

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    I would choose the Seasonic M12D-850W though you don't need anywhere near 850W. Enermax Modu82+ 625W would be fine for your needs.
     
  14. Sacraster

    Sacraster Senior member

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    agree with seasonic m12d
     
  15. zxc367

    zxc367 Junior Member

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  16. Rifter

    Rifter Diamond Member

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    I have the Corsair TX 850W and love it, its a great PSU i would buy it.
     
  17. MagickMan

    MagickMan Diamond Member

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    PSU junkies... :laugh: My neighbor is running a rig almost identical to the OP with a Corsair 550VX, and it isn't even close to being stressed. I'd just get a 650TX and call it a day. It's a great bargain @$89AR w/ free shipping.

    I understand that enthusiasts want to overbuild everything, but an 850W for system like that is a bit absurd.
     
  18. brblx

    brblx Diamond Member

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    yeah, the guy who said a 450w would be fine was closer than anyone who thinks he needs 850...

    i would have zero qualms about running that rig off a 650w psu.
     
  19. theAnimal

    theAnimal Diamond Member

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    I would save $50+ and get the Corsair HX850 which is at least as good and has a 7 year warranty versus only 3 for the Enermax.

    Review.
     
  20. Quiksilver

    Quiksilver Diamond Member

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    Antec Signature 850
    Enermax Revolution 850
    Corsair HX850
    Seasonic M12D 850
     
  21. yh125d

    yh125d Diamond Member

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    This is the same argument that you always use. "It's stock speed but hes gonna overclock". Which is true, for sure, but even overclocking the i7 from stock to 4gHz or so, and the gpus maybe 10-15% really doesn't add that much. Definitely not enough to justify a 200w bigger PSU. The OP would still easily be fine with a 650w or so without being pound foolish
     
  22. MagickMan

    MagickMan Diamond Member

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    Exactly, 650W Corsair would be perfect.

    Now, if you just MUST have an 850, for whatever reason, I'd still go with Corsair (even though that Antec Signature is really sexy).