Which PSU should I buy??

[tl49]

I'm going to build new computer (more likely upgrade)

I planning to buy radeon 7850 or maybe gtx570 or 560ti

I went to fry's to check things out, and found antec 650w psu for $69.99

(i think it's this one http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044)

I know many people says corsair PSU is the best, but it's little pricey.

Is it really worth it to invest money on PSU(corsair)??

650w is enough for me right?? (I'm not ultra user, maybe just little overclock)

I heard that for PSU it is better to buy at instore, is it true?? Or should I just buy from Newegg?

Recommend one for me~

 

[Roxas2030]

Antecs are very reliable, yes the Corsairs are good but so are Antecs. that PSU is good. what are you other specs, we can't really tell unless you tell us your CPU and what not. Either than that:

GTX 560 Ti; the card has a TDP of 170 watts
----
Measured power consumption R7850

System in IDLE = 160W
System Wattage with GPU in FULL Stress = 256W
Difference (GPU load) = 96W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 106 Watts
----
GeForce GTX 570 : 480 SP, 320-bit, 219W TDP

 

[inzone]

While the Corsair psu's are a good brand the actual top brand is SeaSonic and they actually make some of Corsairs psu's. You can also look at the certifications of the psu's with the platinum, gold, silver and bronze meaning the level of efficiency. The platinum being the top level and therefore expensive and the gold at the top also , the silver and bronze are good and most end up going with bronze.

SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply
$139.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088

As you can see the 650w SeaSonic gold is $139.99 but is a top quality brand and efficient psu.

XFX Core Edition PRO650W (P1-650S-NLB9) 650W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply
$99.99 and a $10 rebate makes the final price $89.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207014

This would be a good choice since SeaSonic also make the power supplies for XFX.
Rhis is a handy web page to go to if you want to find out what you need for watts.

http://images10.newegg.com/BizIntell/tool/psucalc/index.html

 

[tl49]

Best answer selected by tl49.