I want to buy a new pc. But i am not sure about the power supply. Some sites offer nice power programs that indicate the amount of watts needed for a system, but when i read blogs like this one it seems that most people are using way less?? The specs is as follow. Motherboard: Asrock Z77 pro3 motherboard. Processor : Ivy brigde i5 3470 3.2ghz. 4 gb corsair vengance memory. elite 430 case with 5 fans. Coolermaster X6 , RR-X6NN-19PR-R1 - CPU Cooler. At this stage i will use the integrated graphics until i can buy a proper graphics card. So for this system what graphics card do you suggest and the ammount of power i will need. Thanks
A quality 650W or 750W PSU is plenty for your system with up to a single GTX680. You could even get by with a 550Watt but it's best to get a 650W/750W.
That totally depends on your budget.
I tend to lean towards NVidia GTX670/680 for high-end gaming machines. I have the Asus GTX680 TOP card which is about $540 and three slots. There are also other good 670/680 cards from Gigabyte and others. Always get one with a nice non-reference cooler and possibly read a review on the card.