There are 2 seperate specs:
DX:
Nearly no minimum as long as it has usefull dx7 drivers
OpenGL:
Minimum is a 3D card. This requires ATI or NVIDIA (Intel sometimes has a usefull driver, sometimes not, which is why I would explicitely state a 3d card)
DX:
Nearly no minimum as long as it has usefull dx7 drivers
OpenGL:
Minimum is a 3D card. This requires ATI or NVIDIA (Intel sometimes has a usefull driver, sometimes not, which is why I would explicitely state a 3d card)