Which power supply?

[linje]

Prices are roughly the same.But which one is the better power supply?

Antec EA650
Antec True Power 650
Corsair 650TX

I know they are all quality,and the tp-650 is modular,but which one would
you get?

 

[faxon]

of those 3 i would get the corsair. between them and others though i would probably look for something different, there are cheaper units out there that are of equally good if not better quality if you look around. newegg had a seasonic S12II Bronze 620w on sale for $75 yesterday, not sure if its still good.

 

[Computers_Plus]

I would get the Corsair they make very good quality power supplies the TX650 has a large 52 Amp single +12 volt rail and a 5 year warranty

 

[Rifter]

Corsair, but if you can snag a XFX 650w for the same price i would go with it.

 

[HOOfan 1]

I am guessing that is a Truepower New? In which case, it is the best of the lot.

 

[tomoyo]

If you mean truepower new 650, definitely get that. It reviewed great all over. The 650TX a close second.

 

[Henry Chinaski]

The Corsair TX650 is a quality unit, however the ANTEC TruePower New 650W is a better option.
The ANTEC TruePower New 650W presents a higher efficiency (80 Plus Bronze certified vs 80Plus Certified), better voltage regulation (voltages are close to their nominal values) and ripple and noise supression. It comes with semi-modular design, it supports even two high-end video cards (two 5850 included) that require two power connectors each due to the four PCIe connectors (the TX650 has only two). They get the power from two 25A rails (all for themself). There are four independently regulated +12V rails rated at 22A (two of them) and 25A (the other two) which are over current protected. The max. combined +12V rating is 54A (648W).
The TX650 presents a single-rail design on the +12V output and it is able to deliver 52A (624W).
The Antec TruePower New 650W is based on a DC-DC converter on the secondary which increases the overall efficiency of the power supply.
Both have been made by Seasonic, which is an amazing PSU manufacturer, and have five year warranty. All electrolytic capacitors are Japanese in both cases too.

In the following links you will find reviews from both PSUs:

Antec: http://www.realhardtechx.com/index_archivos/Page673.htm
Corsair: http://www.realhardtechx.com/index_archivos/Page447.htm

 

[linje]

Thanks for the help guys.

 

[Computers_Plus]

Henry Chinaski hate to burst your bubble but this Corsair is even better Bronze cert. with a 7 year warranty for an extra $20

http://www.newegg.com/Product/Produc...82E16817139012

 

[Zap]

NEWSFLASH - BETTER HARDWARE CAN BE HAD FOR MORE MONEY!

:hmm:

 

[crucibelle]

Henry Chinaski hate to burst your bubble but this Corsair is even better Bronze cert. with a 7 year warranty for an extra $20

http://www.newegg.com/Product/Produc...82E16817139012

NEWSFLASH - BETTER HARDWARE CAN BE HAD FOR MORE MONEY!

:hmm:

lmao!

 

[HOOfan 1]

Henry Chinaski hate to burst your bubble but this Corsair is even better Bronze cert. with a 7 year warranty for an extra $20

http://www.newegg.com/Product/Produc...82E16817139012

the 7 year warranty part is about the only thing that is correct...the Antec Truepower New is actually just as good...or better

 

[Computers_Plus]

both units are Seasonic made but the single 52 Amp +12 rail is best for heavy demand multi rail power supplies with smaller amperage ratings are not all they are cracked up the largest +12 volt rail on the Antec is 25 amps a lot of video cards have a 26 amp or better minimum demand from the power supply will only grow as CPU and GPU and ram demand grows I mean we are seeing 6 core CPU's dual core GPU's and 8 or so gigs of ram become common plus adding in overclocking you need a pretty heavy amperage supply for that

 

[theAnimal]

but the single 52 Amp +12 rail is best for heavy demand multi rail power supplies with smaller amperage ratings are not all they are cracked up

Read the sticky. Single or multi 12V rails almost never matters, as long as you have a properly sized good quality PSU.

the largest +12 volt rail on the Antec is 25 amps a lot of video cards have a 26 amp or better minimum demand from the power supply

There are very few video cards that will draw over 20A, and of course part of that (up to 6.25A) would come from the PCIe slot which would not be on the same rail as the PCIe power connectors. If your PSU has the required connectors for the video card, it should be able to handle it.

 

[Computers_Plus]

theAnimal I don't care what your sticky says you completely missed the point

 

[VirtualLarry]

both units are Seasonic made but the single 52 Amp +12 rail is best for heavy demand multi rail power supplies with smaller amperage ratings are not all they are cracked up the largest +12 volt rail on the Antec is 25 amps a lot of video cards have a 26 amp or better minimum demand from the power supply will only grow as CPU and GPU and ram demand grows I mean we are seeing 6 core CPU's dual core GPU's and 8 or so gigs of ram become common plus adding in overclocking you need a pretty heavy amperage supply for that

When a video card saysyou need 26A, they are talking about the total 12V output FOR THE ENTIRE COMPUTER. There is no video card that I know of that takes 26A on one rail just for the video card. That would be 312W, just for the video card alone. Which is beyond the specs for this sort of thing.

 

[crucibelle]

theAnimal I don't care what your sticky says you completely missed the point

The sticky is by JonnyGuru, who is a person who knows much more about PSU's than most. You really should read it. What Animal said is correct.

Here is the link: http://forums.anandtech.com/showthread.php?t=157583

The sticky is titled "The splitting of the +12 rail".

In case you still don't want to read it, I will quote an important part for you:

The bottom line is, for 99% of the folks out there single vs. multiple +12V rails is a NON ISSUE. It's something that has been hyped up by marketing folks on BOTH SIDES of the fence. Too often we see mis-prioritized requests for PSU advice: Asking "what single +12V rail PSU should I get" when the person isn't even running SLI! Unless you're running a plethora of Peltiers in your machine, it should be a non-issue assuming that the PSU has all of the connectors your machine requires and there are no need for "splitters" (see Example 1 in the previous bullet point).

 

[Computers_Plus]

The main reason why they split the rails was for safety because so many PSU makers use crappy small gauge wire that was to long and not capable of carrying heavy current safely.

A single rail is it's actually easier to regulate current on as opposed to multiple rails where rail balancing can be an issue in other words you need to make sure you don't plug in hardware that draws 22 amps on an 18 amp rail what this does in effect is like if you take an electric weed eater that draws 18 amps and plug it into a 100 foot cord that's plugged into a 15 amp circuit backed up by a 100 amp service panel take into account you already don't have enough amps on the circuit you have line loss on the cord by the time you get power to the weed eater it's only getting say 10 amps current it still works but it will burn itself up prematurely by being underpowered why do you think you see so many video card issue all over the forums a lot of time they just are not getting enough power.

 

[HOOfan 1]

The main reason why they split the rails was for safety because so many PSU makers use crappy small gauge wire that was to long and not capable of carrying heavy current safely.

A single rail is it's actually easier to regulate current on as opposed to multiple rails where rail balancing can be an issue in other words you need to make sure you don't plug in hardware that draws 22 amps on an 18 amp rail what this does in effect is like if you take an electric weed eater that draws 18 amps and plug it into a 100 foot cord that's plugged into a 15 amp circuit backed up by a 100 amp service panel take into account you already don't have enough amps on the circuit you have line loss on the cord by the time you get power to the weed eater it's only getting say 10 amps current it still works but it will burn itself up prematurely by being underpowered why do you think you see so many video card issue all over the forums a lot of time they just are not getting enough power.

I think you missed the point. If you read the sticky...then you might be enlightened. "Rail balancing" is complete FUD.

Multiple rails has nothing to do with small gauge wire...although a wire large enough to safely carry the 100+ Amps that many PSUs can produce would be way too large to route through your computer. Splitting the 12V rail is about safety. Good companies like Seasonic don't design their multi-rail PSUs to be too weak to power modern videocards.

the largest +12 volt rail on the Antec is 25 amps a lot of video cards have a 26 amp or better minimum demand from the power supply

Those ratings are not for the videocard itself. The videocard companies would be stupid to give a minimum rating for ONLY the videocard considering that the CPU and drive motors are also pulling power form the 12V rail....the minimum current rating suggested by the manufacturers takes into account the theoretical total 12V power draw of the entire system.

Look at this article and you will see that single GPU videocards are not even close to requiring 26A of 12V power all by themselves.
http://www.xbitlabs.com/articles/video/display/gpu-power-consumption-2010_3.html#sect0

 

[Computers_Plus]

did not say the card itself requires that I meant the requirements will say to have at least a 26 amp single +12 volt rail my whole point was there is no real "need" for multiple rails plus none of you guys even realize these PSU's are not 100% efficient meaning there is some wasted energy that your not accounting for meaning regardless of it's rated spec you won't see it all

 

[HOOfan 1]

did not say the card itself requires that I meant the requirements will say to have at least a 26 amp single +12 volt rail my whole point was there is no real "need" for multiple rails plus none of you guys even realize these PSU's are not 100% efficient meaning there is some wasted energy that your not accounting for meaning regardless of it's rated spec you won't see it all

Um...no power supply is 100% efficient and unless someone finds out a way to defeat the laws of physics, they never will be. Some of the most efficient PSUs are multi-rail units though. As to your assertion that they will not meet their rated specification...go read some reviews by jonnyguru, or Oklahoma Wolf, or Gabriel Torres, or Paul Johnson and you will see there are plenty of high quality multi-rail PSUs that meet and exceed their rated specification.

READ THE STICKY...it explains WHY there are multi-rail PSUs and it explains how most of them are implemented. I can assure you the author of that sticky has a much better grasp on this concept than any of the rest of us. In the end it really doesn't matter to MOST users whether it is multi-rail or not. However, your assertion that the Corsair HX650 is better than the Antec Truepower New 650 based on multi-rail versus single rail is simply flawed.

 

[tomoyo]

I love how this thread is basically everyone telling computers_plus to finally READ THE STICKY FOR REAL. I'm gonna have to agree though, stop skimming the sticky and read it five times...SLOWLY. Understand it. Than if you want to talk, you can. But we aren't going to count the opinion of anyone who doesn't fully understand jonnyguru's lessons.

 

[theAnimal]

did not say the card itself requires that I meant the requirements will say to have at least a 26 amp single +12 volt rail

The requirements by graphics card manufacturer's are overrated mainly due to the many crap PSUs which are available, and that can often barely deliver over 50% of their rated power.

plus none of you guys even realize these PSU's are not 100% efficient meaning there is some wasted energy that your not accounting for meaning regardless of it's rated spec you won't see it all

Efficiency of the power supply dictates AC power draw, not whether or not a PSU can deliver it's rated DC power.

 

[Computers_Plus]

A Quote from PC Power And Cooling, does Johnny Guru design and sale power supplies no!

With all the hype about multiple 12-volt rails (ads claim that two rails is better than one, five is better than four, etc.), you would think it was a better design. Unfortunately, it's not!


Here are the facts: A large, single 12-volt rail (without a 240VA limit) can transfer 100% of the 12-volt output from the PSU to the computer, while a multi-rail 12-volt design has distribution losses of up to 30% of the power supplys rating. Those losses occur because power literally gets trapped on under-utilized rails. For example, if the 12-volt rail that powers the CPU is rated for 17 amps and the CPU only uses 7A, the remaining 10A is unusable, since it is isolated from the rest of the system.


Since the maximum current from any one 12-volt rail of a multiple-rail PSU is limited to 20 amps (240VA / 12 volts = 20 amps), PCs with high-performance components that draw over 20 amps from the same rail are subject to over-current shutdowns. With power requirements for multiple processors and graphics cards continuing to grow, the multiple-rail design, with its 240VA limit per rail, is basically obsolete.


PC Power and Cooling is once again leading the industry. All of our power supplies now feature a large, single 12-volt rail. The design is favored by major processor and graphics companies, complies with EPS12V specs (the 240VA limit is not a requirement) and is approved by all major safety agencies such as UL and TUV.

 

[HOOfan 1]

A Quote from PC Power And Cooling, does Johnny Guru design and sale power supplies no!

Word of advice for you...don't always trust the word of someone who is trying to sell you something....

Find the bit from PC P&C about how a large overhead fan was no good and you should only buy a PSU with a smaller high RPM fan that was mounted on the front or back.....guess what they sell now, PSUs with large overhead fans...so obviously they have little regard for their own FUD.

BTW, PC Power and Cooling may sell power supplies, but they don't design them.

If you like marketing FUD, then here is some equally inane stuff from Antec
http://www.antec.com/Believe_it/PSU/