LoL it may not be the best but it's certainly a good psu. Look here:
www.coolermaster.com/product.php?product_id=6643 60A: 720 W Is not bad.
Some say Corsair is better well let's take a look
62A: 720 W
Anyway it might even be able run gtx 570 in SLI. I asked the retailer but he wasn't sure it might be just in or out of range of the psu. And I used different PSU calculators which said it would probably work.
So no in single card mode this PSU will have NO problems at all, (assuming it's a healthy one)
PSU calculators= crap
Judging a PSU based off of it's Amperage has it's limits too.
You're doing everything wrong...lol
As mentioned above, a psu consists of many parts that are used in unison to create a stable psu...and yeah read all about it in JG psu reviews.
You're on a website full of enthusiasts, chances are, we're more likely to be right...
U cant judge things because it has a number on it, the quality is what counts.
heck, a low wattage seasonic psu can out do your cooler master one by a long shot.