Roundup: 12 Gaming Power Supplies Compared
Gamers demand a lot from their computers, starting with the PSU. Therefore, almost every PSU manufacturer sells products optimized for gaming PCs. We introduce ripple and noise testing in this roundup to further improve our power supply evaluations.
Cougar SX700
With a street price of around $180 (if you can find it in your country), the Cougar SX S700 is in the most expensive upper-third of this roundup. As expected, it comes well-packaged. With premium materials and an interesting orange/red underside, the Cougar SX S700 is a real treat both to the touch and for the eye. This goes for the well-constructed modular and round cables as well. Only the ATX, PCIe, and CPU cables are hard-wired.
When it comes to cable length and connectivity, the Cougar SX S700 is rather generous with its eight SATA and four PCIe cables. The PSU is both Nvidia SLI-ready and AMD CrossFire-certified in case you want to use multiple graphics cards. The Cougar SX S700 has four dedicated +12 V rails available, two of which provide up to 20 or 24 A.
Cougar SX700 | ||||||||
---|---|---|---|---|---|---|---|---|
AC Input | 115-250 V, 50-60 Hz | |||||||
DC Output | +3.3 V | +5 V | +12 V (#1) | +12 V (#2) | +12 V (#3) | +12 V (#4) | -12 V | +5 Vsb |
25 A | 25 A | 20 A | 20 A | 24 A | 24 A | 0.6 A | 3.0 A | |
Individual Output | Row 3 - Cell 1 | Row 3 - Cell 2 | Row 3 - Cell 3 | Row 3 - Cell 4 | Row 3 - Cell 5 | 0.6 A | 3.0 A | |
Rail Utilization | Sys | Sys | CPU & VGA | |||||
Combined Output | 150 W | 684 W | ||||||
Total Continuous Output | 700 W | |||||||
Peak Output | 900 W |
Stay On the Cutting Edge: Get the Tom's Hardware Newsletter
Get Tom's Hardware's best news and in-depth reviews, straight to your inbox.
-
xxsk8er101xx Because it failed a few of the tests.Reply
FLanighanWhy not Corsair? I jizz at my tx850w -
p1n3apqlexpr3ss Corsair has a gamer series... whyd they test one of the units from the top line aimed more at enthusiasts?Reply -
V8VENOM Odd, why isn't Silverstone reviewed at all? Most of the power supplies they looked at are junk for anyone with more than one GPU and overclocking. I dumped my PC Power & Cooling 1000 Watt PSU because it couldn't handle two ATI 5870's and overclocked CPU to 4Ghz with 1600 FSB. I put in a Silverstone 1500Watt PSU and my system has been rock solid ever since.Reply
The article doesn't appear to measure noise from during switching and how much noise is introduced to the CPU and bus.
Anyway, it will be a cold day in hell before anyone gets me to switch out my Silverstone 1500 Watt PSU. -
scook9 V8VENOMOdd, why isn't Silverstone reviewed at all? Most of the power supplies they looked at are junk for anyone with more than one GPU and overclocking. I dumped my PC Power & Cooling 1000 Watt PSU because it couldn't handle two ATI 5870's and overclocked CPU to 4Ghz with 1600 FSB. I put in a Silverstone 1500Watt PSU and my system has been rock solid ever since.The article doesn't appear to measure noise from during switching and how much noise is introduced to the CPU and bus.Anyway, it will be a cold day in hell before anyone gets me to switch out my Silverstone 1500 Watt PSU.You are either lying or very unlucky (got a bad PSU)......I have crossfire 5870s and an i7 965 and all stock cannot exceed 650W at the wall (about 550W actually used) no matter what I try.Reply -
JamesSneed Nice tests but I came to a different conclusion. The seasonic X-750 is close to the most effiecent in the bunch and did you see that voltage ripple it looked like it was flat lining.Reply -
boiler1990 For the ~$20 price difference between the Corsair 850HX and the AX850, I think I'll get the AX. It never hurts to invest in a great PSU :)Reply -
juuh V8VENOMOdd, why isn't Silverstone reviewed at all? Most of the power supplies they looked at are junk for anyone with more than one GPU and overclocking. I dumped my PC Power & Cooling 1000 Watt PSU because it couldn't handle two ATI 5870's and overclocked CPU to 4Ghz with 1600 FSB. I put in a Silverstone 1500Watt PSU and my system has been rock solid ever since.The article doesn't appear to measure noise from during switching and how much noise is introduced to the CPU and bus.Anyway, it will be a cold day in hell before anyone gets me to switch out my Silverstone 1500 Watt PSU.Reply
I call BS. I could run your setup with my PC power & cooling 750w unit.
http://www.techspot.com/review/289-geforce-gtx-480-sli-versus-radeon-5870-crossfire/page9.html -
random1283 agreed no reccomendation for an x series seasonic, you guys must be mssing something, every other review of the x series said that they are simply amazing much better then any nxzt or anything.Reply