Seasonic 1k platinum, antec 1k platinum, or seasonic 1250 gold?

[PsychoPsonic]

I'm putting together a 680 SLI rig on an Asus z77 WS mobo with a pair of SSDs, an optical drive, and a 7200rpm HDD.
This is going in a HAF X case, so cable length is a consideration.

Which of these PSUs would you recommend?

Antec HCP 1000
Seasonic SS-1000XP
Seasonic X-1250

Are there others I should consider?

Thanks in advance!

 

[lehtv]

680 SLI isn't worth it over 670 SLI which is $200 less expensive. There's a whopping 4% difference @ 2560x1600. 670 SLI and i5/i7 with OC will run easily on a 850W unit, such as XFX 850W XXX $140 ($120 AR) (80+Silver semi-modular Seasonic build). $35 more would get you Corsair AX850 which is fully modular, marginally more efficient, covered by 7-year warranty, but not really any more reliable of powerful. Assuming you're in the US.

What resolution is this for?

EDIT: I'm also interested why you want to spend $340 on a motherboard. Do you plan to run Tri-SLI in the future? If so, a 1000W PSU would be more appropriate.

 

[OVerLoRDI]

850 is plenty. Any of the PSUs lehtv mentioned are good choices. Personally owned an AX850 and those are great PSUs.

 

[Smoblikat]

You could get away with extreme OCing on a 750w unit. My rig is proof of this.

 

[Don Karnage]

Go with 670 SLI. Like said above 680's aren't worth it unless you bench

 

[Fallen Kell]

Only reason to need 1k W power supply is if you are doing 3x or 4x SLI/Crossfire (and even then it depends on the video cards that you are using).

 

[aaksheytalwar]

670 sli with ss 1000xp

 

[Smoblikat]

670 sli with ss 1000xp

Dont take this guy seriously. he has a 22nm chip and a single graphics card on a 1300w PSU.

 

[Agent-A01]

i picked up the Seasonic platinum 1000 watt because i wanted it to last a long time.

 

[poohbear]

U realize 670s in sli & a 3570 ivy bridge use only ~400wts under load right? This is 2012 with 22nm parts, these 1k psus are overkill!

 

[Continuity28]

U realize 670s in sli & a 3570 ivy bridge use only ~400wts under load right? This is 2012 with 22nm parts, these 1k psus are overkill!

Power supplies are most efficient at about 50% load, and tend to be better built the higher you go, so there is legitimate reasons for making a larger initial purchase... but I agree, 1000+ is usually overkill.

 

[poohbear]

i'd beg to differ, the higher quality psus maintain their efficiancy regardless of load. Back in the day when SLI was literally 600wt -700wt to run 2 cards, i could understand the need for 800+ psus, but in 2012 and beyond its just pointless cause power efficiency is high high on the newer 22nm parts. 400wts for SLI of high end cards & a quadcore cpu @ 4ghz would've been unimaginable 4 years ago.

 

[lehtv]

Power supplies are most efficient at about 50% load, and tend to be better built the higher you go, so there is legitimate reasons for making a larger initial purchase... but I agree, 1000+ is usually overkill.

The difference in efficiency between 50% and 80% load is marginal, it should be completely ignored when choosing a PSU. You cannot justify the cost of a more powerful PSU with more optimal load efficiency, not in a million years.

 

[Stoneburner]

The seasonic x-series are about the best rated units these days. There is an 860w Platinum for $200 on newegg.

If you want to save some cash, newegg often runs deals on the x-750 (gold not plat) which is a damn good unit that will run your proposed system.

I always go for fully modular. Makes builds so much cleaner.