Discussion Power supply discussion and review list thread

Page 17 - Seeking answers? Join the Tom's Hardware community: where nearly two million members share solutions and discuss the latest tech.
Mar 7, 2019
19
2
15
0
Seasonic 650 watt focus gold plus or
EVGA supernova 650 watt G3 80+ gold?
And will both of it run my i7-9700k And rtx 2080? If yes which one is better?
 

Darkbreeze

Titan
Moderator
Eh, I think the G3 is a better unit than the Focus plus. Now if it was a Seasonic Prime, there'd be no question. But as RL said, both are excellent no matter what, and I could be wrong. Seems I heard something negative about the G3 as compared to the G2 units. I know it's smaller and I think the issue was a slightly louder fan profile. Other than that though, IIRC the G3 has pretty much mythic levels of everything.
 
Reactions: TendaCrusher

Darkbreeze

Titan
Moderator
Saw that. Also saw they were group regulated except the higher capacity models. The old M12II 650, 750 and 850w models were all DC to DC too. Probably same platform as those used on these higher wattage S12II models, IDK. I asked Aris about this a while back. Think there's a post in this thread about this as well.
 
I also just noticed the Seasonic S12III and was looking for more information on it, specifically how they compare to the now older S12II. Has anyone been able to find a review or any other further information? $24.99 USD after $15.00 rebate card for the 500W model until Tuesday 03-19-2019, the regular price appears to be $39.99 on newegg.com.
 

Aeacus

Illustrious
Herald
Everyone see there's a new Seasonic S12 III? I can't find anything about it. A reddit thread says the lower wattage models are still group regulated but the 650w model is obviously independent DC to DC. 54a for 648w of its 650w rating is available on the 12v rail.

https://seasonic.com/s12iii#specification
Saw that. Also saw they were group regulated except the higher capacity models. The old M12II 650, 750 and 850w models were all DC to DC too. Probably same platform as those used on these higher wattage S12II models, IDK. I asked Aris about this a while back. Think there's a post in this thread about this as well.
I also just noticed the Seasonic S12III and was looking for more information on it, specifically how they compare to the now older S12II. Has anyone been able to find a review or any other further information? $24.99 USD after $15.00 rebate card for the 500W model until Tuesday 03-19-2019, the regular price appears to be $39.99 on newegg.com.
According to the specs, there are several differences between S12II and S12III series:
  • S12II series has max wattage output at: 350W, 430W, 520W and 620W. S12III series has max wattage output at: 450W, 500W, 550W, 650W.
  • S12II series PSUs have fluid-dynamic bearing fan while S12III series PSUs have double ball bearing fan.
  • S12II series have shorter cable lengths (50mm) and distance between connectors (10mm/20mm) than for S12III series.
  • S12II-520 has 4x molex connectors on the cable while S12III-550 only has 3x molex connectors on the cable .
S12II specs page: https://seasonic.com/s12ii
S12III spec page: https://seasonic.com/s12iii

I also sent an e-mail to Seasonic support to ask if there were any other differences between S12II and S12III, e.g perhaps different platform. Seasonic rep had this to say:
Hello,

Thank you for contacting Seasonic.

The platform between both are different and S12 III uses a platform that enhanced compatibility to Intel Haswell (and newer) CPU platform. Else, you have found all the others differences to expect.

Thank you.
 
Reactions: JQB45

Darkbreeze

Titan
Moderator
If they are Haswell compliant, then how can they be group regulated. We already know group regulated units can't be Haswell compliant. Maybe you can get them to clarify or elevate to somebody who CAN clarify, as to whether these are or are not group regulated units, at all wattages. I expect they are not, because they do not use the 520w and 620w platforms and it would be stupid for Seasonic to use a new, group regulated platform, but who knows.
 

Similar threads


ASK THE COMMUNITY