according to this:
http://www.justpushstart.com/2010/03/12/gdc-2010-civilization-v-first-look/
" In terms of graphics we saw it running on Dx11,
but even low end computers running at least Dx9 can play it."
http://www.justpushstart.com/2010/03/12/gdc-2010-civilization-v-first-look/
" In terms of graphics we saw it running on Dx11,
but even low end computers running at least Dx9 can play it."