My Bernina 780 has dual feed which work with several feet, including 1/4" piecing feet. The dual feed works just like a walking foot, in that the fabric is gripped from both the bottom and top to move both top and bottom fabric evenly thru the machine. I do have a walking foot that I mainly use with my smaller machine that doesn't have the dual feed system. The walking foot is really too wide to get an accurate 1/4" seam. Does your machine allow you to adjust needle positions left or right?
Without more information about your machine, it really wouldn't be possible for us to answer the question . . .so you might not know until you sew a few seams and judge for yourself.