Canon 1D has a 4.0MP APS-H (28.7 x 19.1 mm ) sized CCD sensor . On the other hand, Canon 1D MII has a 8.0MP APS-H (28.7 x 19.1 mm ) sized CMOS sensor .
Below you can see the 1D and 1D MII sensor size comparison.
Canon 1D and Canon 1D MII have sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Canon 1D has 101% larger pixel area compared to Canon 1D MII, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.