Is a dedicated graphics card always better than integrated even if the graphics card is low end?

I’m considering buying this PC. With a coupon I can get it for $750 good deal? – http://www.shopping.hp.com/webapp/shopping/load_configuration.do?destination=review&config_id=7183162&aoid=35252

It comes with a dedicated graphics card which seems to be pretty low end, which is fine since this wont be used for serious gaming, but if it comes to watching movies would there be much difference between the card on this computer versus integrated graphics?

The other PC’s I’m looking at have i5 processors and integrated graphics and are around $500 – $600. TBH the PC in the link may be way too much machine for what I’ll use it for but the price is tempting.