Here we have a Process Color business card which was created and saved as an EPS file (vector format). Note, however, that it contains an embedded TIFF image (raster format).

 

The resolution of the EPS file itself is somewhat irrelavant; however, the TIFF image inside the EPS needs to be at least 300 dpi in order to achieve acceptable print quality. As can be seen from the image, in order for this to happen, the size of the TIFF image needs to be at a minimum about 263 pixels wide by 319 pixels high.