The Power Supply Unit tier list Discussion thread

[Deleted member 217926]

Corsair CS650M has much better voltage regulation and higher conversion efficiency than the Seasonic M12II-620 Bronze EVO Edition.

The Seasonic M12II-620 Bronze EVO Edition is based on an older group regulated circuit topology.

The Corsair CS650M uses modern DC-to-DC forward converter topology.

The Corsair is also fully compatible with Haswell's low power C6 and C7 states. The Seasonic is not.

I hope Seasonic drops those old S/M 12 II models soon. They are sort of the models that got left behind compared to everything else Seasonic makes.

 

[chimera201]

Isn't Seasonic M12II-620 Bronze EVO DC-DC Haswell compatible?

 

[ko888]

Isn't Seasonic M12II-620 Bronze EVO DC-DC Haswell compatible?

Only the M12II-750 Bronze EVO EDITION and M12II-850 Bronze EVO EDITION models use the DC to DC converter design.

The M12II-520 Bronze EVO EDITION and M12II-620 EVO EDITION Bronze both use the older group regulated design. Teardown of the M12II-520 Bronze EVO EDITION shows that it is definitely group regulated.

Seasonic even says that the DC to DC converter design only applies to the 750W and 850W models:
http://www.seasonicusa.com/M12-EVO-Edition.htm

Here, the 750W and 850W Intel Haswell Processor Ready models are listed separately from the 520W and 620W models that don't show any Intel Haswell Processor Ready claim:
http://www.seasonic.com/product/pc_retail.jsp

or the PDF product literature:
http://www.seasonic.com/pdf/datasheet/NEW/Retail/AM2-750-850%28FDB%29.pdf
http://www.seasonic.com/pdf/datasheet/NEW/Retail/GM2-520-620%28FDB%29.pdf

 

[Deleted member 217926]

I go by this list:

http://www.seasonic.com/new/twevent20130510.htm

The M12 II Bronze 650w, 750w and 850w models are listed as Haswell compatible.

 

[ko888]

I go by this list:

http://www.seasonic.com/new/twevent20130510.htm

The M12 II Bronze 650w, 750w and 850w models are listed as Haswell compatible.

Where's the 650W model? There isn't one in the M12II Evo Edition lineup.

The discontinued M12II Bronze Series had a 650W model.

 

[Deleted member 217926]

Ahhh good point. That list must be from when Haswell was first released. That was before the Evo models existed I believe. Won't use that list anymore.

 

[ko888]

Ahhh good point. That list must be from when Haswell was first released. That was before the Evo models existed I believe. Won't use that list anymore.

Seasonic hasn't modified that list since May 2013. Too bad that they don't maintain it or put out a revised list.

 

[FALC0N]

Probably because it's usefulness is questionable. The intel test puts too much load on the 3.3v and 5v. A psu could still fail that test and do just fine in real world usage. Has anybody seen an example of an S12II/M12II having haswell issues? I haven't. Maybe they have been, but I certainly haven't run across it. Even if it does, just shut down C7 in the bios/UEFI.

 

[chanuka]

Can anyone tell me where the FSP Aurum S 500W fits in. Can't find any reviews of that PSU. Thanks

 

[Novuake]

Can anyone tell me where the FSP Aurum S 500W fits in. Can't find any reviews of that PSU. Thanks

Decent unit, would avoid overclocking on it though.
Runs a bit hot if I remember correctly.

EDIT : Considered T3 on this list, but it is superior to most other T3 units in my opinion.

 

[Deleted member 217926]

No real reviews of the Aurum S exist but using the other FSP 80 Plus Gold units in the Aurum series as a baseline they should be decent. Wouldn't be my first choice but I wouldn't worry about having one either.

 

[chanuka]

Well but the Aurum GOLD PSUs have Japenese Caps but this one doesn't. Will that make a huge difference ? Planning on using it with a r9 270X(not overclocking) for more than 5 Years.

 

[Novuake]

Well but the Aurum GOLD PSUs have Japenese Caps but this one doesn't. Will that make a huge difference ? Planning on using it with a r9 270X for more than 5 Years.

If you have it already it will do just fine. If not, there are better units at the same price point.

 

[chanuka]

Thanks Novuake and anort3

 

[chanuka]

Just wondering.. Why is the Antec VP 450P is listed in Tier 2b which only delivers 360W max on the 12V rail. Both VP 450P and non P versions are manufactured by FSP. Will this handle the GTX 760 or a GTX 960 ?

 

[ko888]

The Antec VP450P has horrible voltage regulation on its +3.3V and +5V rails.

 

[tiny voices]

I am running a gtx760 and an overclocked i5 on a VP-450.

As stated, the P is a much inferior unit. I would NOT use it in place of my standard VP-450.

 

[Karsten75]

OK, I'm confused. There are now two lists? each with ongoing, active discussion? Are both being updated at the top to reflect current situation?

 

[tiny voices]

No, the 2.0 list is the up to date one.

 

[damric]

I'd say that the 2.0 list is a slightly updated work in progress. Soon I'll be publishing a list of recommended PSUs for various price point/wattage levels. It will make a lot more sense. There won't be any junk PSUs either.

 

[Dark Lord of Tech]

I like to give personal choices based on needs , not just here's a list , pick one out.

 

[damric]

I like to give personal choices based on needs , not just here's a list , pick one out.

EXACTLY ^^

 

[dottorrent]

Attention.

This list is to be deleted on April 31st 2015. After April 31st, a link to the new list will replace everything on the first post. This thread will now become the discussion thread. This may potentially lock the tier list v2 from comments (this will come into discussion with moderators).

Thank you.

Dottorrent.

 

[damric]

This is what I'm working on right now:

https://docs.google.com/spreadsheets/d/1FXfOf-lZ8hgdg0kkVxR9GWLtcwcQYfSDcQHMfVmatKs/pubhtml

Narrowed it down and weeded out all the BS

 

[Dark Lord of Tech]

Looks good damric , I just received my EVGA 550GS from UPS.

It's Seasonic , very nice.