View Full Version : Building new PC, looking for the right power supply

11-03-2012, 07:35 AM
I'm building a new PC much along the lines of Tom's Hardware's guide: http://www.tomshardware.com/reviews/core-i5-overclock-performance-gaming,3097.html.

That's an Intel Core i5-2400 CPU (stock heatsink/fan), an MSI PH61A-P3 motherboard, and the usual other bits and ends. (Refer to the link for details.)

The one change I'm planning to make is the graphics card. I'm waiting for the AMD Radeon HD 7850 series to ship out instead of buying the AMD Radeon 6870 from the article. That, or a Geforce GTX 560 Ti of some kind.

The Radeon 7850 & GTX 560 Ti are about tied on performance, but the former consumes much less power and runs cooler and quieter (http://www.tomshardware.com/reviews/radeon-hd-7870-review-benchmark,3148-19.html).

So how much power do you reckon I need? Is the Corsair gaming series G500 500W (http://www.newegg.com/Product/Product.aspx?Item=N82E16817139033) overkill? (It provides up to 39A on the +12V line.) I'm factoring in the possibility of future graphics upgrades. I need enough power for the latest generation second tier graphics card in a few years. That is, whatever I get for under $250 in a few years; I've found this to be the sweet spot for gaming at 1920x1080.

11-03-2012, 08:22 AM
500 watts should leave you a decent amount of breathing room, but it isn't overkill by any means. The psu you linked does seem rather expensive for a 500 watt unit. In that price range you might want to consider this Antec as an alternative (http://www.newegg.com/Product/Product.aspx?Item=N82E16817371031), since it seems to be better across the board. 10$ less, +12V@48A, and 620 watts which is actually enough to crossfire most of the current radeon cards. That is assuming you are in NA from your link though.

It actually looks like psu prices have gone down recently, or maybe Newegg is having a sale, there are a lot of good deals on right now.

Edit: Googling the Antec tells me that it is actually a rebranded Seasonic, which is good because they have a great rep for reliability.