Adding graphic card to HP Touchsmart 520-1070uk

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c03046687-14%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1409848012428.876444892.492883150

There is my actual pc.

My question is: 

-Can I add into my PC new graphic card?

that is it:  ATI mobile Radeon HD 4570 MXM-III

If that is bad card, you can show me others (example) compatibile cards, better than intel hd 2000

Please help!