connecting to 2 networks at once?

[MuGeN]

is there any advantage in speed or anything for me to connect to one network through ethernet and one network through wifi? both on completely different lines/routers etc?

kinda doubt it but i might as well ask

 

[MuGeN]

no idea what i want to achieve, was kinda asking what it is possible to achieve...

the software driving the network card is just whatever stuff is built into my iMac...