I saw a budget PSU and wanted about it.



This is horrendously wrong, like absolutely attrociously wrong, you have been drinking Corsair/XFX's kool-aid a bit too long.

Multiple rails are not a problem, single rail isn't better than a well designed multi rail unit, and 4 12V rails sure as hell isn't "dangerous" it is actually slightly safer as you have reduced the power you can dump into any point before you trip the power off, no PSU rail configuration is "dangerous". Check the links in my sig, i have covered the single vs multi rail debate before, but it seems the FUD has made a comeback.


The EVGA super novas have not been reviewed by any of the main sites yet so we don't know how they perform, the one review i could find it seemed to do well, but not having read through other reviews on that site i can't say how they compare to HWSecrets or Jonnyguru reviews.

The Rosewill capstone series is a better PSU, but it is also 1.8x the cost so of course it is going to be a better PSU, but you likely don't even need a 750W unit, 550W will do most single GPU systems and you can get those for notably less.
 
The CM series is decent, it isn't design to be a top end unit, but it also doesn't come at a top end unit price. They are decent little units designed for your average system that isn't going to need super tight voltage/ripple control for high OCing. It will do fine if you can find it at a competitive price.

There seems to have been a trend on the forums lately that if it isn't a top rated PSU it is junk, and that is absolutely untrue. You don't need a gold rated PSU, it doesn't get you anything, you need a PSU at a reasonable price point that will keep on chugging and keep feeding clean power, you don't need the ridiculous 1% voltage regulation and ripple <10 mV, its nice but it gives you no additional value unless you intend to shoot for an OCing world record with exotic cooling.