4gb
E6300?
7600gto? or something around there, so pretty old specs.
There's not really any flashy graphics. Its more just live data and how things are collected from online sources and then displayed.
As far as I know no limitation on gfx card. However there are limitation on pixels.
I think it's ~1366px width you get all the split screen options. Under that you get some options and below that you don't get split screens. Something like that anyway.
Did a quick google search but couldn't find it anywhere. It's in yesterdays keynotes but that's like over two hours long, has anyone got better memory and can remember it in better details.