Power Supply question (about the inspiron desktops)

I was wondering what the specs were on the power supply that comes with the desktop inspiron 545 (not the slim).  I heard it was 350W or 300W.  Just as a side question, not sure if this is the right place but I've done a lot of research on it but I want to be 100% sure, will the video card radeon hd 4670 work with the default PSU?  Pretty much everywhere I looked everyone agreed it should work well, but it can't hurt to ask in one more place...

Thanks!