Sabertooth has two PCI-E 3.0 x16 slots + one PCI-E 2.0 slot, Maximus has thee PCI-E 3.0
Sabertooth has 4 SATA 3Gb/s + 4 SATA 6Gb/s, Maximus has 2 + 6
Sabertooth has Audio Chipset from Realtek ALC892, Maximus has SupremeFX IV
Sabertooth has two e-SATA ports, Maximus just 1
Sabertooth is 1/2 inch shorter
Maximus has WiFi + Bluetooth
Sabertooth has TUF components w/ 5 year warranty