Best System Power Supplies Overall

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Overall Computer Gaming I7 Overclocking

Wize has searched all the product sites to find the best and worst products. We have read 20,798 System Power Supply reviews from 39 sites.

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Zalman Tech ZM600-HP Power Supply

$133.00 Est. at Amazon

from www.newegg.com
and did i mention quiet?Cons: nopeOther Thoughts: I've been running zalman for the past few years and have had zero problems.
from www.newegg.com
Pros: Looks great.
from www.newegg.com
It runs cool to the touch, noisless and no "Mystery Shutdowns" from the voltage dropping from the rails during Gaming or any other power intense apps.
from www.newegg.com
Pros: Oh yhea...
from www.newegg.com
Zalman went and used their expertise to put a two pipe heatsink/ heat exchanger in the back of this unit.

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Positives: Wattage: 600 Watt, Single Fan

2 RECOMMENDED by 39 people for OVERALL

Ultra Products Lifetime Series Pro 650-Watt Power

$84.00 Est. at Amazon

from www.tigerdirect.com
fans.it got a little warm on me once after doing a little overclocking.also no problems pluging anything in.i can't see how they could make this psu any better.the only test left is the test of time.
from www.tigerdirect.com
got this for my 1st computer build.
from www.tigerdirect.com
as a side note, if you purchase from ultra make sure you have an extra psu or another computer because to get an rma they require you to e-mail the purchase invoice of the bad psu.
from www.tigerdirect.com
i would definitely buy another one for my next computer.
from www.tigerdirect.com
i also bought xfx 680i and intel q6700 quad as a package and built myself a new computer.

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Positives: Wattage: 650 Watt, Compatibility: ATX, Single Fan

3 RECOMMENDED by 39 people for OVERALL

Antec Signature 850 SG850 850-Watt Power Supply

$281.00 Est. at Amazon

from Matt, www.newegg.com
the components in this thing are only the absolute best.i got it to power my intel core i7 (one more month!), 4870x2, 12gb ddr3, velociraptor, antec twelve hundred machine.
from steve, www.newegg.com
i got it for my brothers computer that i built.
from www.amazon.com
this psu is extremely quite and provides the necessary power to run my computer with nvidia 260's in sli and the rest of my accessories with power to spare.
from jeep4wheel, www.newegg.com
would diffenently recommend this to anyone building a computer.
from xeromist, www.newegg.com
other thoughts: i had a faulty hard drive shorting my computer.

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Positives: Wattage: 850 Watt, Compatibility: EPS12/ATX12, Single Fan

4 RECOMMENDED by 31 people for OVERALL

Ultra Products X3 ULT40073 600-Watt Power Supply

Ultra Products Ultra X3 (ULT40073) 600-Watt Power Supply

$144.00 Est. at Amazon

from www.tigerdirect.com
a good ps should last 3+ years of hard gaming.
from www.tigerdirect.com
if you're going to pop for this expensive unit in a gaming or overclocking rig, i recommend you put ds-5 gold protective oil on all the connections to prevent oxidation.
from www.amazon.com
it spews out huge amount of rfi (radio frequency interference), even when the computer is off.
from bvrev.compusa.com
Same as oders on here my X2 550 also kicked the bucket and called Ultra support and just like that they are replacing it with this one!
from bvrev.compusa.com
I've had the X3 for about 2 months now.

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Positives: Wattage: 600 Watt, Compatibility: ATX 12V, Single Fan

5 RECOMMENDED by 127 people for OVERALL

Corsair Memory VX450W 450-Watt Power Supply

$96.00 Est. at Amazon

from bvrev.compusa.com
ordered vx450 wed deliverd fri installed in 15 min.along taking out old antec 350w power supply the vx450 is a little quiter the loudist fan in my computer is my cpu fan that came with my mobo a
from bvrev.compusa.com
however, i took my time and replaced cables on the computer's components one by one, and i really had no problem.
from FrontBoard, www.newegg.com
other thoughts: i picked up a competing sub-400w supply for my computer to try quiet it down a bit.
from JechtShot, www.newegg.com
it should last a great while for any mild gaming system.
from N/A, www.newegg.com
also the first power supply (i'm a computer technician, i ran across just a few) that i can truly say looks good.

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Positives: Wattage: 450 Watt, Compatibility: ATX 12V, Single Fan

Corsair Memory VX550W 550-Watt Power Supply

$90.00 Est. at Amazon

from www.amazon.com
i just recently built a computer and put in this monster power supply ,it's worked wonderful,no computer glitches or anything like that,five months in.
from www.amazon.com
however, since this was so a nice powerful unit, i decided to build a gaming system around it.
from N/A, www.newegg.com
under normal system load you can not hear the fan running, under full load with 9800gt it puts out a little noise, but you don't notice that stuff when you are gaming.
from www.amazon.com
the absolutely best power supply i have ever owned since i became involved with computers twenty years ago
from www.amazon.com
i searched for an 80 + rated power supply to reduce heat build up in my computer case.

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Positives: Wattage: 550 Watt, Compatibility: ATX, Single Fan

Thermaltake W0104RU Toughpower 650W Power Supply

$158.00 Est. at Amazon

from www.newegg.com
this psu keeps my entire computer up and running without a hitch.
from www.newegg.com
pros: tt's latest toughpower did very well in all my pre-overclocking tests.
from www.mwave.com
I was looking for a power supply that could meet the power requirements of my new BFG video card.
from www.newegg.com
Pros: Excellent power supply - I have a 4-disk raid array, plus a 2-disk SATA raid, plus 2-DVD drives, along with an SLI graphics card.
from www.newegg.com
Pros: Gave me a great amount of connectors and powered everything on my comp great.

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Positives: Wattage: 650 Watt, Compatibility: ATX 12V, Single Fan

Corsair Memory CMPSU-620HX 620W ATX EPS12V PS/2

$206.00 Est. at Amazon

from bill from lagrangeville, ny, clickfrom.buy.com
it has a fan that sucks hot air out of the computer case.
from Steve from Bear, DE, clickfrom.buy.com
however, i was unpleasantly surprised to find that this is easily the loudest part in my computer.
from www.newegg.com
plus it carries a 5 year warranty.cons: noneother thoughts: the corsair 620w power supply unit fits the lian li pc-v1000bplus ii black aluminum atx mid tower computer case like a glove.
from www.newegg.com
with most retail floppy drives these days.other thoughts: so many people buy high powered parts for their computers and then spend $xx on a cheap power supply and wonder why things don't work right.
from www.newegg.com
i was surprised not to see at least a partial front vent, but i guess that forces air out the back and away from the computer except it's sucking hot air from across my nice big zalman cpu heatsink,

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Positives: Wattage: 620 Watt, Compatibility: ATX, Single Fan

PSU COOLMAX|CUG-700B 700W RT CUG700B Power Supply

$92.00 Est. at Amazon

from www.newegg.com
I've got this in a case with an overclocked E6700 (3.3 Ghz) and an overclocked 8800 GTX and this is, in fact, the most efficient power supply I've dealt with.
from www.newegg.com
My old 350 watt Antec PSU is much louder.
from www.newegg.com
Pros: This is a 700w psu.
from www.newegg.com
Low noise and plenty of power to run almost anything.
from www.newegg.com
Pros: High quality, very good PSU, high efficiency, plenty of power for any gamers ring.

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Positives: Wattage: 700 Watt, Compatibility: ATX 12V, Single Fan

Corsair Memory CMPSU-1000HX 1000-Watt Power Supply

$325.00 Est. at Amazon

from N/A, www.newegg.com
i live in arizona and it already is hot when i sit by my computer but when i turn the system on and play for about 4 to 5 hours this thing makes my leg feel like it is on fire but i know my system
from www.amazon.com
well i brought the corsair hx520 and swap corsair cmpsu-520hx 520-watt hx professional series 80 plus certified power supply compatible with core i7 and core i5the power supply went without a hitch,
from www.amazon.com
this power supply was a five star purchase when i bought it but about six or so months later my computer shut off and there was a really bad smell coming from the power supply.
from drew, www.newegg.com
1 star for no reason at all but the actually bought it??system specsantec 1200sapphire 4870x2intel core i7 2.66 oc to 3.4asus rampage ii extreme6g of corsair 1600swiftech h20-220 apex ultima
from www.amazon.com
it is a great psu, runs quiet, and unless the computer is doing some serious crunching it stays cool.

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Positives: Wattage: 1000 Watt, Compatibility: EPS12/ATX12

Corsair Memory CMPSU-850TX 850-Watt Power Supply

$186.00 Est. at Amazon

from Lewy, www.newegg.com
850 w is enough to supply practically all top performance computers.
from N/A, www.newegg.com
still haven't built the computer that it was purchased for so don't know how long its going to last.
from Surge, www.newegg.com
one 12v rail is the way to go if you are overclocking and have a power hungry video card.
from Power, www.newegg.com
other thoughts: works great, powers up my core i7 + hdd + core 216 with no sweat.i dunno why people complain it isn't modular.
from jasonelmore, www.newegg.com
i actually have the 750w corsair version and it powered 2 280 gtx's, core i7 @ 4.2ghz, 3 hard drives, and swiftech water cooling kit, all in a cosmos s case just fine.

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Positives: Wattage: 850 Watt, Compatibility: EPS12/ATX12, Single Fan

Corsair Memory TX 750W Power Supply CMPSU-750TX

$155.00 Est. at Amazon

from bvrev.compusa.com
installed it and started overclocking my system right away evga 780i, quad 6600, evga gtx 260 ssc.
from bvrev.compusa.com
my main concern when hooking this up is not having a computer when i plugged it in, but that didn't happen and i am throughly impressed.
from bvrev.compusa.com
i have a full size antec 900 gaming case and did not have a problem at all.
from lt.dell.com
this one is powering an overclocked i7 920, gtx 260 vidcard, watercooling pump and lots of fans, plus the usual dvd burner and a couple of hard drives.
from www.amazon.com
when it comes to building a computer system, corsair products are a must for me.

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Positives: Wattage: 750 Watt, Compatibility: ATX 12V, Single Fan

Thermaltake W0106RU Toughpower 700W Power Supply

$131.00 Est. at Amazon

from www.newegg.com
tons of power for the new technology and gaming rigs.cons: wiring gets kind of cluttered, make sure you can fasten it around, but it not really that big of a deal.other thoughts: buy it!
from www.newegg.com
it has a troubling tendency to blow up (and it took my last computer with it)!
from www.newegg.com
i have a lian li case and the only way i got it in was to partially disassemble the lower portion of the computer case.
from www.newegg.com
computer doesn't skip a beat because it's waiting for a sluggish psu modular connectors means a clean case interior.
from www.newegg.com
modular cables keep case clean.cons: well the biggest con was the first on coming doa and not having my computer for a week.

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Positives: Wattage: 700 Watt, Compatibility: ATX 12V, Single Fan

BFG Technologies Tech EX-1200 BFGR1200WEXPSU 1200W Continuous @ 40°C ATX12V 2.2

BFG Technologies BFG Tech EX-1200 BFGR1200WEXPSU 1200W Continuous @ 40°C ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire... Power Supply

$239.00 Est. at Amazon

from Ninjawithagun, www.newegg.com
Pros: - Outstanding power effciency (almost 90% at idle)- 4 x 40 Amp Rails!!
from Tom W. from NJ, www.newegg.com
Pros: -1200 watts of high efficiency power-Silent-Modular*-6x PCIe Connectors (3x6 Pin, 3x 6+2 Pin)-Beautiful finish on product-Lifetime Warranty-Excellent price for the quality of this product
from wysiwyg, www.newegg.com
Good efficiency at low or high power draw.
from sthester3@windstream, www.newegg.com
Pros: 1200 watts with lifetime warranty.
from N/A, www.newegg.com
Pros: 1200Watts of power.

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Positives: Wattage: 1200 Watt, Compatibility: AT

StealthXStream OCZ700SXS 700-Watt Power Supply

$86.00 Est. at Amazon

from ironsmith, www.newegg.com
other thoughts: the power supply is more than good enough for the system it is in:core i7 9206 gb ddr3x25-m 80 gb ssd1tb green wd hddquadro fx380 256mb gddr3dvd burneretc...
from Sportivny, www.newegg.com
other thoughts: pretty happy with my selection, just what i wanted for my gaming htpc setup to power msi nvidia 260 gtx...
from boyettdw, www.newegg.com
more than enough power to run everything on my core i7 system with room to grow.
from vwagenjetta, www.newegg.com
i was looking to put together a "cheapest possible" gaming machine for my boys, and i wanted a 700w psu, but they were all 100+ in price.
from smoke-free, www.newegg.com
just built an i7 system using ocz components and now i'm worried how long it will last.

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Positives: Wattage: 700 Watt, Compatibility: EPS12/ATX12, Single Fan

Thermaltake PSU TT|W0128RU 650W RT Power Supply

$150.00 Est. at Amazon

from www.newegg.com
also, this can get on the warm/hot side during major overclocking or during intensive games.other thoughts: overall it's a great psu, with an 8-pin cpu connector.
from www.newegg.com
other thoughts: i wish all my computers had this power supply.
from www.newegg.com
power supply powers down correctly but will not bring the computer up again.
from www.newegg.com
pros: this power supply is fantastic just stuck this baby in a raidmax smilidon, powers everything in my computer fantastic including my 8800 gts and my 9 fans, its extremely silent i don't even
from www.newegg.com
pros: the rails keep well within spec, not much variation on the 12v/3v/5v which is great when overclocking.

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Positives: Wattage: 650 Watt, Compatibility: ATX 12V

Ultra Products ULT40070 X3 Modular Power Supply

$438.00 Est. at Amazon

from bvrev.compusa.com
only downside to this psu is the 80mm fan on the front can be a tad noisy if your computer is right next to you.
from bvrev.compusa.com
note: if you're installing the psu inside a case where the psu mounts on the bottom (such as the thermaltake spedo case), be sure to have the computer elevated a bit off the floor to prevent the air
from www.amazon.com
1200 watts is enough for most any computer that one could configure.
from www.amazon.com
3 days later my cousin told me that his old 1000 thermaltake powersupply can handle his pc better than the ultra 1600-watt and that the ultra 1600 watt shuts down after about 1 and a half hour of
from www.amazon.com
i bought this one (which by the way, was easy to install, and worked flawlessly with a high end gaming machine) for my new gaming box.

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Positives: Wattage: 600 Watt, Compatibility: ATX, Single Fan

Thermaltake Toughpower W0158RU 650-Watt Power

$123.00 Est. at Amazon

from n8t1308, www.newegg.com
other thoughts: this is not a power supply for your entire computer.
from NOS_Fogger, www.newegg.com
it's a good thing i was home at the time or i think that more than just my computer would have burned!
from Rich, www.newegg.com
other thoughts: this is not a power supply for your computer.
from www.amazon.com
Great low cost upgrade for power hungry vga cards It's been running 24/7 in my folding rig for 1 month now powering 2 of my 3 gtx 275 cards Easy installation I would highly recommend this as a lower cost upgrade rather than buying a full 1000 watt or...
from n8t1308, www.newegg.com
Cons: -Dont know what happened but after installation and first boot up the extra power immediately fried my motherboard and processor as well.-Cant tell wether its a bad PSU or my system just wasn't compatible (even though im running a fairly new sy...

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Positives: Wattage: 650 Watt, Compatibility: ATX 12V, Single Fan

Thermaltake PurePower W0070RUC 430-Watt Power

$48.00 Est. at Amazon

from www.tigerdirect.com
a three year warranty that helps me later on use it on another computer if need be.
from www.tigerdirect.com
i will install this supply in friends computers when their orginal supplies die.
from www.tigerdirect.com
i recommend it for small computers (in terms of energy consumption).
from www.tigerdirect.com
it's quiet, no problems, and the price was great compared to local pricing in the computer stores.
from www.tigerdirect.com
since he's not doing any overclocking on a celeron 3.33ghz based system, i knew this would be perfect.

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Positives: Wattage: 430 Watt, Compatibility: ATX, Exterior Color: Black, Dual Fan

Thermaltake TR2 RX W0134RU ATX12V Power Supply

$114.00 Est. at Amazon

from GreyFox, www.newegg.com
draws 2 watts when computer is 'off' vs 4 watts that the $23 supply consumed.
from N/A, www.newegg.com
this supply runs very cool even while gaming and really taxing the system.
from GreyFox, www.newegg.com
Draws 2 watts when computer is 'off' vs 4 watts that the $23 supply consumed.
from choosepp, www.newegg.com
Pros: Another great product by Thermaltake.
from kevirost, www.newegg.com
Pros: Easy to install, modular design is excellent, cables are of sufficient length, fan is quiet, power appears reliable.

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Positives: Wattage: 550 Watt, Compatibility: ATX 12V, Single Fan

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Electronics

System Power Supplies

Best System Power Supplies Overall

Zalman Tech ZM600-HP Power Supply

Ultra Products Lifetime Series Pro 650-Watt Power

Antec Signature 850 SG850 850-Watt Power Supply

Ultra Products X3 ULT40073 600-Watt Power Supply

Corsair Memory VX450W 450-Watt Power Supply

Corsair Memory VX550W 550-Watt Power Supply

Thermaltake W0104RU Toughpower 650W Power Supply

Corsair Memory CMPSU-620HX 620W ATX EPS12V PS/2

PSU COOLMAX|CUG-700B 700W RT CUG700B Power Supply

Corsair Memory CMPSU-1000HX 1000-Watt Power Supply

Corsair Memory CMPSU-850TX 850-Watt Power Supply

Corsair Memory TX 750W Power Supply CMPSU-750TX

Thermaltake W0106RU Toughpower 700W Power Supply

BFG Technologies Tech EX-1200 BFGR1200WEXPSU 1200W Continuous @ 40°C ATX12V 2.2

StealthXStream OCZ700SXS 700-Watt Power Supply

Thermaltake PSU TT|W0128RU 650W RT Power Supply

Ultra Products ULT40070 X3 Modular Power Supply

Thermaltake Toughpower W0158RU 650-Watt Power

Thermaltake PurePower W0070RUC 430-Watt Power

Thermaltake TR2 RX W0134RU ATX12V Power Supply

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