Hey,
on windows you can set for every program which card the program will use. So you can set the extra graphic card for Cross and it will use this card.
Alternative I tested the video plugin also on an Intel iCore with first generation and it worsk also but the quality will not like when using an high performance graphics card.
But the new iCores have better video performance than the older versions. Also the memory I have 8GB and I can set on bios the maximum of memory which is for the graphics card and I can play games like crysis with that

but not on high quality but it works

So if you have an extra card you can run better quality than with the internal chip version.
regards
Christian