Can I Use this graphics card

Hundle

Honorable
Jan 27, 2013
1
0
10,510
Hi, i recently bought a new desktop, and the gpu is really bad its the amd radeon hd 7450, and i wanted to upgrade my graphics.So i want to get the amd radeon hd 6670 ,and i wanted to know if i could crossfire or if i need to replace the 7450. My pc has a 300watt psu though, and the rest of the specs are here: HP Pavilion HPE H8-1234 AMD FX-6120 3.5 GHz AMD Radeon HD 7450 1GB 10GB DDR3 RAM 1TB 7,200 RPM 300 Watt PSU http://www.tigerdirect.ca/applications/searchtools/item-details.asp?EdpNo=3907687&pagenumber=1&RSort=1&csid=ITD&recordsPerPage=5&body=REVIEWS#CustomerReviewsBlock Thanks