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9-Way 850W Power Supply Roundup

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SKYMTL

HardwareCanuck Review Editor
Staff member
Joined
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12,840
Location
Montreal
Pricing and Value Comparisons (CAD & USD)

Pricing and Value Comparisons (CAD & USD)



With market conditions changing at a break-neck pace, consumers are looking for the most value for their money. In this section, we have taken one Canadian (Hardware Canucks’ Price Canada) and one US-based (Froogle) price comparison engine out for a spin in order to find what these power supplies will cost the consumer. However, what we have not done is taken into account the long-term costs associated with each product based on efficiency levels and component degradation.

Also note that all prices listed are without rebates of any kind and the average price used eliminates the highest and lowest prices we saw to eliminate any abnormal “loss leaders” affecting the calculations. In some cases, we only found one retailer listing a particular produce in which case the average price will be the same as the minimum price. Products must be in stock for us to consider the price valid.


Canadian Pricing

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Considering its performance, the Silverstone Strider Plus looks like an exceptional value if you are buying it here in Canada. With an average price of around $147, it is actually over $100 less expensive than the rather shockingly-priced Thermaltake Toughpower XT and $8 less than the second place Cooler Master Silent Pro M. Speaking of the Silent Pro, it should be noted that certain stores are selling it for less than the Silverstone unit so if its results interest you, it can be had for a more than fair price.

From a pure monetary perspective, the Xigmatek NRP looks like a great value for the output numbers you get but availability here in Canada means that $178 is as low as we saw at the single place it is listed. Moving down the charts we see four power supplies clustered around the $200 to $220 mark and all except the Ultra perform quite similarly to one another which makes a customers’ decision all the harder. The Ultra does offset part of its additional cost with that drool-worthy lifetime warranty though. Finally, while it may be a great performer, the Antec Signature isn’t going to be winning any awards for its Canadian pricing.


US Pricing

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Things are a bit different south of the 49th parallel with several of the power supplies switching spots and some even becoming more expensive than they are here in Canada. The Enermax Revolution85+ is now the most expensive product of the bunch by a long shot while the Antec Signature is still up there as well with an average price of $232USD. The Thermaltake Toughpower looks a bit better here but there is still no hiding the fact that you are paying $70 more than the Xigmatek NRP which is based on the same platform.

Seasonic is now sitting pretty with the lowest price of the group at an amazing $120 but availability is a bit scarce regardless of how well it performs. Cooler Master and Silverstone are once again looking good from a price perspective as well. Finally, we have XFX which has a power supply that sits firmly in the middle of the pricing index and proves itself to be well priced considering its results in the tests we conducted.
 

SKYMTL

HardwareCanuck Review Editor
Staff member
Joined
Feb 26, 2007
Messages
12,840
Location
Montreal
Conclusions: Antec, Cooler Master & Enermax

Conclusions


If anything, this roundup provided a broad cross section of the 850W power supply and showed us that you don’t have to pay top dollar for optimal performance. Considering the broad range of prices these units covered, it was definitely interesting to see some of the lower priced units competing head to head with products that cost up to $100 more.

To make matters even better for consumers, there isn’t a single power supply here that provided what we would call abysmal results. Sure, some didn’t give us optimal performance while others were simply overpriced but there wasn’t a single failure in the group and all stayed within the ATX specified norms. PSU failure does make for an interesting article but it feels good to know that more and more companies are realizing that quality sells and are taking steps to provide users with products that provide clean, worry free power.

The 850W category is in or opinion one of the “sweet sports” within the current power supply market considering the output you can get for your money. Powering a high-end SLI or Crossfire system with these units isn’t a problem and even with a pair of HD 5870 cards and an overclocked i7 920 running full tilt, we still needed to add a 130W CoolIT Boreas TEC unit to really push things. Yes, there will always be higher end GPUs to power but if you buy a good 850W power supply now, you should have more than ample room to expand in the future.

Now, onto the individual conclusions.


Antec Signature 850W

The Antec Signature 850W is one of those products that come around every now and then which totally blow our socks off in some areas but is growing a bit long in the tooth in others. Its voltage regulation and ripple results are among the best we have ever seen and it stayed whisper quiet through all of the tests. Back when it was released, it simply destroyed the competition but now its efficiency is definitely not a redeeming quality. Nor were we fans of the decidedly unimpressive cable sleeving job. Price isn’t on its side either since the Signaute is one of the most expensive units we received for this roundup.

We should mention that while the Signature was introduced in 2008, it is still widely available and Antec doesn’t plan on replacing it in the foreseeable future. But, does it hold the test of time? With performance like we saw, we believe so but due to its 80Plus Bronze rating and high price it is very hard to recommend this unit over lower-priced 80Plus Silver-rated units. That being said, we struggled with the decision of whether to give the Signature an award for its performance or not but it just missed out.


Pros:

- Stunning voltage and ripple performance
- Quiet
- Relatively efficient


Cons:

- Expensive
- Inefficient compared to similarly priced units
- Cable sleeving isn’t all that well done




Cooler Master Silent Pro M 850W

Honestly, the Silent Pro M isn’t the greatest power supply that we have ever tested but it is far from the worst. When running at the normal loads one would put on an 850W power supply it is actually very well behaved and exhibits passable voltage regulation and good ripple suppression. Unfortunately, things start falling apart when more is asked of it. Its fan speed profile is far too mundane which allows temperatures to rise to worrying levels and thus causes a rapid degradation of performance as load increases. Remember, this Cooler Master unit is only rated at 40°C so things can and will fall apart when internal temperatures reach 50°C+ like we saw.

There are however some resounding qualities here. It carries one of the best warranties we have seen at 5 years and also shows some of the best efficiency of all the 80Plus Bronze rated power supplies in this roundup. Performance isn’t everything and the flat cables Cooler Master used are perfect; they are done perfectly and will help you immeasurably when setting up a clean system. Pricing is also extremely good, especially if you are buying it in the United States.

If you are looking for an extremely inexpensive 850W power supply which you won’t be pushing with an ultra high end dual GPU setup, the Silent Pro M could be an option for you. Otherwise, there are better performing units out there which don’t cost all that much more.

Pros:

- Efficient
- Very well priced
- 5-year warranty
- Quiet until high loads
- Great flat cables


Cons:

- Disappointing performance at higher loads
- Gets extremely hot




Enermax Revolution85+ 850W

If you are looking for the best of the best in this roundup, you need not look any further than the Enermax Revolution85+. The numbers it posted were simply awe-inspiring but the real star of this performance was efficiency. Considering the fact that there were other 80Plus Silver rated products being tested, we expected power consumption to be close and it was…up until the Extreme Load test where this Enermax PSU ate the competition for breakfast.

When it comes to functionality, the Revolution once again gets nearly everything spot on with suitably long cables and an adequate number of connectors. Unfortunately, our honeymoon with it came to a screeching halt after seeing the mess that results from cables being sleeved only to the first connector. Remember, this is coming from a power supply that costs over $200. Seriously Enermax, what the hell were you thinking?

Ribbing on the cable SNAFU aside, we have to say that the Revolution 850W’s somewhat high price isn’t even a factor here since people should be more than willing to pay a premium for a product of this caliber. This power supply is simply a god standing among men and as such, it gets a well deserved Dam Good Award. Also note that Enermax will be announcing shortly that all Revolution85+ power supplies will be receiving a retroactive 5 year warranty. This means if you bought your PSU a year ago, you will now have four remaining years of coverage.

Pros:

- Stunning performance
- Extremely high efficiency
- Quiet
- Long cables
- 5-year warranty


Cons:

- Cables only sleeved to the first connector


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SKYMTL

HardwareCanuck Review Editor
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Joined
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Messages
12,840
Location
Montreal
Conclusions: Seasonic, Silverstone & Thermaltake

Seasonic S12D 850W

Seasonic is one of those few manufacturers who have yet to send us a power supply that we wouldn’t hesitate to use in one of our systems. Their S12D proved itself to be a worthy successor to past generations of Seasonic power supplies by passing every test with flying colors. While it didn’t distinguish itself in any one category, this black-clad unit preformed extremely well while being one of the (subjectively) quietest competitors. We also loved the fact that comes with perfectly sleeved, long cables that are sure to reach any part of your case.

As you have probably already realized, it is hard for us not to find something wrong with a product. Perhaps we’re too critical but this is honestly one of the only units in this roundup that we can’t fault for anything. From efficiency to voltage regulation and ripple suppression, everything is just brilliantly executed.

Unfortunately, availability hurts the S12D 850W along with the fact that it isn’t modular but is priced equal to or higher than some modular units here in Canada. In the US on the other hand, the S12D presents an amazing value for your hard earned money as long as a modular interface isn’t one of your needs. As such, when we take into account its performance along with its US price, Seasonic is the proud recipient of both our Dam Good and Dam Good Value awards.

Pros:

- Great performance
- Very quiet
- Long cables
- Compact size
- Price in the USA



Cons:

- Availability
- Price in Canada


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Silverstone Strider Plus 850W

In this roundup we have seen power supplies that offer stunning performance and others that are budget friendly but finding a combination of the two is next to impossible. Amazingly, the Silverstone Strider Plus 850W actually did the impossible and became a sort of Holy Grail for us by offering high-end performance at a price that is unbelievably low. It has 80Plus Silver certification with the numbers to back it up, tight voltages, great ripple suppression, a fully modular interface and cables that you have to see to believe. There really isn’t anything not to like.

Did we mention that the Strider Plus costs about $50 - $75 less than similarly performing power supplies? If you are upgrading your system, $75 almost covers the price difference between a HD 5850 and the mind-blowing HD 5870. Granted, the odd lack of an on / off switch may have some of you scratching your heads but we don’t think this will really hamper people in any way. On the other hand, some of the cost savings over the other products in this roundup will be eaten up by the price you pay for shipping its gargantuan box.

Simply put, the Strider Plus 850W is the perfect power supply for a time when people are looking for the best value for their money. It offers the optimal mix of price, performance and functionality which is why it receives our Dam Good and Dam Good Value awards. If you are looking for a new power supply, this should be the one that’s at the top of your list.

Pros:

- Amazing performance
- High efficiency
- Low price
- Very long cables
- Compact in size
- Fully modular interface


Cons:

- Massive box means higher shipping costs


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Thermaltake Toughpower XT 850W

Thermaltake’s Toughpower XT isn’t a bad power supply per se since it has good voltage regulation, runs quietly and has some good length cables. Unfortunately, the fact that you would have to pay ~$250CAD for nothing more than a modular, prettied up Channel Well PSH-based product is simply atrocious when you consider Corsair’s own PSH-based TX850W retails for $150 these days. Even the PSH-based Xigmatek unit in this roundup is priced significantly lower. To make matters even worse, Thermaltake’s own site lists an MSRP of….wait for it….$289! We have one word for the price of this unit: idiotic.

Pricing aside, there are other things that bother us about the Toughpower XT. Its average efficiency really isn’t all that great considering its 80Plus Bronze certification and the ripple it displayed (while within the ATX specs) is far too high for the market segment it plays in. Those LED indicators on the side might look good to a newcomer but they honestly don’t serve a single function other than to add to the cost of an already overpriced PSU. Another gripe we have is the PCI-E cable layout. The lack of functional 6+2 pin PCI-E connectors means a sinfully ugly adaptor needs to be plugged onto the 8-pin connector if you want to use a modular 6-pin PCI-E cable. It looks to us like Thermaltake didn’t want to pay for the licensing of the 6+2 pin PCI-E connector.

If you can find it for less, this power supply may represent a better value than some other competitors but it would still be behind many other 850W PSUs on the market in terms of efficiency, ripple suppression and functionality. As it stands, the Thermaltake Toughpower XT is overpriced and thoroughly underwhelming.


Pros:

- Good voltage regulation
- Quiet
- 5-year warranty


Cons:

- Price
- Lackluster ripple suppression
- Low efficiency
- Price (yes, it needs to be mentioned again)
- No 6+2 Pin connectors means adaptors need to be used
 
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SKYMTL

HardwareCanuck Review Editor
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Joined
Feb 26, 2007
Messages
12,840
Location
Montreal
Conclusions: Ultra, XFX & Xigmatek

Ultra X4 850W

Much like with the Cooler Master Silent Pro M, we didn’t know what to expect when testing the Ultra X4 but things turned out quite well. Unfortunately, in this illustrious crowd the Ultra just doesn’t stand out from the competition in any meaningful way other than it posting extremely high +12V readings. This also led to huge fluctuations between one test and the next which could mean the VRMs on your GPU or motherboard will be working overtime. Efficiency wasn’t anywhere near what a $200 power supply should be displaying either.

On the flip side of the coin, the ripple suppression on this unit was more than acceptable and its fan never made itself heard over the noise of the GPU and case fans. Ultra also stands out in a few other areas: cable sleeving, warranty length and connector selection. The sleeving on the X4 is simply some of the best we have ever seen with tightly wound strands lovingly embracing every cable. To make matters even better, Ultra included an amazingly wide selection of cables ranging from short to long and everything in between. Finally, we have the warranty which is the best we have seen: you’re covered for the life of the power supply.

The Ultra X4 isn’t the best performing power supply out there but it uses some forward-thinking features in terms of cabling, connector selection and warranty protection. As such, it wins our Dam Innovative Award.


Pros:

- Lifetime warranty
- Great selection of connectors
- Amazing sleeving on the cables
- Passable ripple suppression


Cons:

- High +12V readings
- Low efficiency versus competition
- Price

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XFX Black Edition 850W

XFX is a total newcomer to the power supply scene but after looking at the Black Edition, it is obvious they are definitely moving in the right direction. Yes, many people who are looking for a PSU will have a love / hate relationship with the exterior design of this particular unit but there is no hiding the fact that it’s a monster performer when the rubber meets the road. On a more personal note, I actually like the unique design used and it is nice to see a manufacturer who is willing to take a risk and break with tradition.

While the exterior will be the most talked about feature of the Black Edition, its performance stands out as well. It competed with the best of the best in this roundup by posting excellent voltage regulation, high efficiency and good ripple suppression through every test. Its cables are also well sleeved but some of them (the ATX cable in particular) are a little short for our liking which can cause an issue when installing this power supply into larger cases that feature bottom mounted PSU configurations.

All in all, XFX’s first foray into the power supply market can only be called a resounding success regardless of what you think of the colors they chose. The Black Edition 850W should have everything you could possibly want in a high-end power supply, comes with a 5-year warranty and won’t break your budget either. They wanted to stand out from the crowd and all we can say is “mission accomplished”.


Pros:

- Excellent performance
- 80Plus Silver efficiency
- Good price
- Very quiet
- 5-year warranty


Cons:

- Colour scheme may not be for everyone
- Slightly short ATX cable

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Xigmatek NRP 850W

Xigmatek deserves a pat on the back. Earlier in these conclusions we lambasted the Thermaltake Toughpower XT because it takes a budget-friendly platform and tacks a ridiculous price premium on it for who knows what reason. Xigmatek on the other hand took that same CWT PSH platform and treated consumers properly by releasing a good modular power supply for a fair price. While it won’t be winning any awards for performance or overall value, the NRP 850W’s numbers stay within the ATX norms and it actually outperforms the more expensive Thermaltake unit in nearly every test. It is also reasonably efficient and constantly posted better than average power consumption results.

We do have a few minor issues with this power supply but they are mostly superficial. To begin with, the colour scheme seems a bit odd; you have orange on the cable sleeving, more orange on the interior heatsinks, a deep brown label on the housing and finally, a blue LED fan. There is also the issue that the unmodified version of the PSH platform is about ready to be put out to pasture as evidenced by the elevated ripple at higher wattages. As we mentioned, it is within the ATX limits but still a cause for some concern.

All in all, with the NRP 850W Xigmatek has a no nonsense power supply which represents a step in the right direction. All they need to do is shave a few bucks off the price and it could be extremely competitive in this market. Unfortunately, there are better units out there for the same price.


Pros:

- Acceptable performance
- Modular interface
- Good voltage regulation

Cons:

- Elevated ripple
- Some short cables
- Price




 
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