The cable/method of connecting would have nothing to do with performance.

Ther specs of the drives on the other hand, would make a lot of difference:
Performance
Cache 2MB
WRITE Speed
DVD+R 24X
DVD+RW 8X
DVD-R 24X
DVD-RW 6X
CD-R 48X
CD-RW 32X
DVD+R DL 12X
DVD-R DL 12X
DVD-RAM 12X