not an issue, my i3 in my laptop can do it quite happily, though it does struggle if one of them is a film, but that could a decoding issue, but it does go away if I switch only external monitor.
Yes the Intel® HD 2000/3000 Graphics can both support dual displays. For additional information on the Intel HD Graphics you can look here http://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics/