RPM plays a major role in deciding the amount of revolutions the blade can perform in a minute with 745 performing 3850 rpm. This is really good that the blade can roll 3850 times per minute and get the work done easily. The durability of the table is for a 3 year time period which is good considering the usage of the product. Indeed a good table saw by Dewalt.
10-inch DEWALT table saw, 16-inch tear capacity (DW745)