bignastyid :
illuminatuz :
650 watts will not provide 650 watts, always reduce 20% of what the manufacturer says. so your 650 watts ideally provides 520 watts of power supply which is good enough..
This depends on the power supply and is by no means a universal rule, Most decent quality modern PSU is usually capable of delivering most(if not all) of its advertised power on its 12v rail(usually the most important and taxed rail). This is closer to being true of low quality and outdated power supplies. For example my AX1200i is capable of delivering 100.4 amps(1204.8w) on it's 12v rail. If what you are saying is true it would only be capable of 960w which is false as I have personally seen it use more than that.
Yeah, but as a thumb rule and to be on the safe side. coz the 80 rating (bronze, silver, gold, platinum...) those are like guaranteed to give 80% consistent power.. but those that are not rated, it's like a thumb rule while selecting..
FearsTearsTR :
Believe it or not,I have the CX650 interestingly.Anyways,so do you say that if I buy the graphics card,I am able to power it up with my CX650? If so,please answer.
I think it's a TX650.. anyways, if you are in doubt, go to www.pcpartpicker.com, update your rig there, once you are finished, the top right corner will tell the max watts that will be consumed by your rig.. and then if it's below 520 watts, you are just good to go.. else, it may not support..
One other way is that nvidia recommends 600 watts, even in that angle, you are just good to go..
In short, you will not have any issues with it.. get it and just go gaming..
Oh.. just in case you are wondering, I would ask you to hold off your purchase as GTX 800 series are coming in a couple of months.. maybe a long wait.. but I'm sure it will be worth it..