We understand your concern regarding the endurance of the Intel® SSD 750 Series.
We would like to inform you that when the SSD reaches the maximum Terabytes Written (127 TBW), It will go to a "Read Only" status which means you will no longer be able to write to the SSD.
If you have any other questions please let us know.
The endurance for the Intel® Optane™ SSD 900P Series is up to 10DW(Disk Writes)/day.
You can check the comparison for both SSDs endurance https://ark.intel.com/compare/123626,86740 here.
Please let us know if there is something else we can assist you with.