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Seasonic Unveils its High-End SS-1200XP3 PSU

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The Seasonic SS-1200XP3 features an 80 Plus Platinum certification, a 1200 W capacity and fully modular design.

The range-topping Seasonic SS-1200XP3 offers a capacity of 1200 W, a fully modular design, and an 80 Plus Platinum certification that provides 92 percent efficiency at 115 Vac and 50 percent efficiency while under load.

The SS-1200XP3 also shares a number of features with other P-series PSUs including a semi-fanless operation whereby the Sanyo Denki San Ace 9S cooling fan is only engaged at loads of 30 percent or greater and 105°C rated Japanese capacitors.

Though this hasn’t been confirmed, we expect the SS-1200XP3 to contain a quad-rail design that is similar to its predecessors. We're not entirely sure why Seasonic has continued to advertise the P-Series as only having a single +12V rail.

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10 Comments Comment from the forums
  • funguseater
    "50 percent efficiency while under load."

    typo?
    Reply
  • stonedatheist
    "We're not entirely sure why Seasonic has continued to advertise the P-Series as only having a single +12V rail."

    Maybe it's because they do in fact only have a single +12v rail. I personally own the SeaSonic Platinum Platinum-860 and it says right on its sticker that it has a 71A +12V rail. Even Seasonic's website lists all Platinum PSUs as having single +12v rails; the 400W has 33A, 460W has 38A, 520W has 43A, 660W has 55A, 760W has 63A, 860W has 71A, 1kW has 83A.

    There is a good chance that this new model could break the trend though because it is the highest power model yet and having multi +12v rails is nice for that little extra protection.
    Reply
  • DarkSable
    ...Because what seasonic really needed was even MORE high-quality parts.
    Y'know, because it's not like they already make some of the best power supplies out there.
    Reply
  • InvalidError
    10966648 said:
    "50 percent efficiency while under load."

    typo?
    Nah, it is so your 400W build can warm up the room and sound like a 800W one with cooling and power bills to match!
    Reply
  • smeezekitty
    Platinum certification that provides 92 percent efficiency at 115 Vac and 50 percent efficiency while under load.
    I sure hope not.
    Reply
  • The Scion of Balance
    I soooo neeed thiiiisss...you know, because I'm like, planning on overclocking an i7-4770K to the max, 2 SSDs in RAID 0 and quad-SLI GTX 790 4 years later. I can actually put this psu under 100% load, so it's a suitable for me because you know, that's always like, the best investment. I mean it's not like I'm running triple monitor setup or anything higher than 1080p, I just can't settle for anything below 200fps, not that I have a 120Hz monitor or the likes, COD just needs that much fps. It's not a problem for me since money is NEVER an issue...Also, any COD IS THE BEST GAME EVAAAAA!!!!
    Reply
  • Afrospinach
    I am sure it is 92% efficiency at 50% load on 115VAC, if you guys did not point it out I would never have noticed :)
    Reply
  • ctv
    All great and dandy, only problem is the very high likelihood of coil whine which Seasonic PSUs are famous for
    Reply
  • laststop311
    I got the 760 watt as there is no need for anything higher. Plus psu's run their most efficient at 50% usage so 760 was best place for me to be. I run a single GTX titan and i7-980x x59 chipset. I'll never run multi gpu setup's unless I fall in love with 4k gaming but by that time i expect a single gpu card to be able to smoothly run that res when 4k monitors are sanely priced. Don't see intel ever wowing me enough to upgrade from the i7-980x either. Kinda nice compared to the old days. Barely have to upgrade now.
    Reply
  • laststop311
    I got the 760 watt as there is no need for anything higher. Plus psu's run their most efficient at 50% usage so 760 was best place for me to be. I run a single GTX titan and i7-980x x59 chipset. I'll never run multi gpu setup's unless I fall in love with 4k gaming but by that time i expect a single gpu card to be able to smoothly run that res when 4k monitors are sanely priced. Don't see intel ever wowing me enough to upgrade from the i7-980x either. Kinda nice compared to the old days. Barely have to upgrade now.
    Reply