Will this video card work on my computer?

I was thinking of replacing my old ATI radeon X600 256MB with a newer ATI radeon 4670 512MB. I know my PSU is sufficient enough, and I have X16 PCI-E slots for it too. But I am just wondering, judging by my previous card being able to work, will the replacement work also? (do I have enough power connectors, etc.)|||yes it should as 4670 is not a power hungry card|||It will work.