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650W Seasonic PSU okay for Crossfire 6970's? - Page 3

post #21 of 52
Quote:
Originally Posted by marc1 View Post

Quite an important statement, which need some supporting reasoning (IMO).

The reasoning is quite obvious, the arguments are plenty and easily accessible by simply reading the stickies here, my posts, some of the longer threads in this section which hold debates on and around this issue... Antec HCP 1200 and Signature 650/850 are most obvious examples... Kingwin Lazer Platinum would be another one, and the list can go on... the OEMs behind these products are Delta and Super Flower, but they're not the only ones to produce brilliant units which easily rival and/or outclass Seasonic's efforts smile.gif
post #22 of 52
Get a 750W one. 650 SHOULD be fine, but why risking?
post #23 of 52
When it comes to PSU recommendations Sin is the guy to listen too (as well as me tongue.gif ).

A 650W will be more than fine. The 6970 take less power than you think. You also have ~150W of room to overclock.
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post #24 of 52
Quote:
Originally Posted by Shadow_Foxx View Post

Also, who would you say the best manufacturer is? They make PSUs for half the brands out there, they must be PRETTY good. They always seem to get high reviews from the guru. Please prove me wrong, I would like to learn something today biggrin.gif

It's tough(and also pointless) to name the best, if I absolutely had to I'd say Delta, which is also the largest... but you have to keep in mind that all the OEMs that make a showing in the high end, premium segment also make budget, value stuff that is not always decent, or acceptable by enthusiast standards... and that's where the volumes are, and even though the margins are far smaller than in the upper segments, these value parts still represent the core business for all these manufacturers.. Seasonic can and does make trash just like everyone else out there, that's why is hard to name the best, there is no safe bet in this business, that's why you should never buy the brand but the underlying product... and naming the best by such an irrelevant criteria as "who makes the best unit on the market right this moment" is a pointless and misguided effort.

There are many players with a solid foothold in the premium segment, Seasonic is just one of them. smile.gif
post #25 of 52
650W should be fine with SB. If you were running SB-E or Nehalem, 750W would be more applicable (while keeping fan speed lower) since those platforms consume more power.
post #26 of 52
Quote:
Originally Posted by Unoriginal Sin View Post

It's tough(and also pointless) to name the best, if I absolutely had to I'd say Delta, which is also the largest... but you have to keep in mind that all the OEMs that make a showing in the high end, premium segment also make budget, value stuff that is not always decent, or acceptable by enthusiast standards... and that's where the volumes are, and even though the margins are far smaller than in the upper segments, these value parts still represent the core business for all these manufacturers.. Seasonic can and does make trash just like everyone else out there, that's why is hard to name the best, there is no safe bet in this business, that's why you should never buy the brand but the underlying product... and naming the best by such an irrelevant criteria as "who makes the best unit on the market right this moment" is a pointless and misguided effort.
There are many players with a solid foothold in the premium segment, Seasonic is just one of them. smile.gif

Cool, helpful stuff, thanks! and uhh, sorry for threadjacking OP, but who makes silverstones high end offerings, specifically the ST-1000-P, im trying to decide if it is a high quality unit, thanks thumb.gif
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post #27 of 52
This may help you: I have a Seasonic 750, and I run my sig rig without any problems.
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post #28 of 52
Quote:
Originally Posted by AMC View Post

When it comes to PSU recommendations Sin is the guy to listen too (as well as me tongue.gif ).
A 650W will be more than fine. The 6970 take less power than you think. You also have ~150W of room to overclock.
I appreciate the vote of confidence smile.gif... indeed you are one of the few good posters on this section of the forum, your sticky thread is especially relevant and helpful, too bad few people actually bother to read it.
Quote:
Originally Posted by Shadow_Foxx View Post

Cool, helpful stuff, thanks! and uhh, sorry for threadjacking OP, but who makes silverstones high end offerings, specifically the ST-1000-P, im trying to decide if it is a high quality unit, thanks thumb.gif
The Strider Plus, Strider Gold and Strider Gold Evolution are all made by Enhance and are good to excellent units.. older premium units from Silverstone were made by Seventeam and Impervio which got bought by Enermax a couple of years back.. Seventeam will also make some of the future high ends from Silverstone including a 1350W monster which will be launched in the months to come and is supposed to be really good. smile.gif
post #29 of 52
You don't have a garbage PSU so your fine.
post #30 of 52
Quote:
Originally Posted by Unoriginal Sin View Post

they're not the only ones to produce brilliant units which easily rival and/or outclass Seasonic's efforts smile.gif

I hope to not going too far in OT territory, but I think it's questionable (and why didn't you mention Zippy?): IMO "outclassing" is a severe word.

I'm not a PSU expert but as many web readers I'm used to trust a bit what Oklahoma Wolf finds about PSUs, and all I can say from his tests about your statements is that usually Delta excels in ripple suppression, SuperFlower in efficiency, Seasonic in voltage regulation.

For each OEM the other performance (of coeve similary priced units) are indeed very often quite consistent with each other, IIRC.
I mean, if 1% of more efficiency at a given power level, or 0,1% in ripple suppression - or half a point in a JonnyGuru review, to come to my favourite readings - can make any real difference, well, my PCs never have been noticed of: and personally I would never call such a difference as an "outclassing".

I don't own any Kingwin units, as here there's almost no way to buy them, but currently among my PSUs I have 1 Antec Signature 650, 1 Seasonic X-750, 1 Antec HCP850 - which replaced a former Antec CP-850 - and 1 Seasonic M12D 850.

Summarizing, FWIW the X-platform (Seasonic, Corsair, XFX...) is a very good all around, currently not "outclassed" - in the above quoted personal meaning/reasoning - by any similary priced 80plus Gold unit. IME (but maybe I'm biased 'cause they're always among the quietest, at those power levels I'm used to).
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