The MSI HAWK is a factory OC'ed card and would give you better performance, while the Sapphire is just a poor old reference card. So cant compare both of them I suggest the HAWK on this. If you are not too comfortable with Oc'ing yourself.
This card from Sapphire may come close:http://www.newegg.com/Product/Product.aspx?Item=N82E16814102906
There was a Toxic version from Sapphire dont know where it is now. It was also a Factory OC'ed card.