Crucial SSD momentum cache

Hi, I have downloaded crucial executive for my SSD and on one page there is a button to enable the drives momentum cache. Also on this page is a warning that my PC is not battery backuped so enabling momentum cache is at my own risk. I backup my SSD to a Hitachi mechanical drive every day.

Two questions, as I backup every day is the possibility of data loss on the boot SSD due to power loss and the cache enabled a moot point. The second question is the Ssd is a 6gb drive connected to a data 3.0gb interface, will enabling the cache see much performance improvement and will the cache save some Nand cells from being written to extending the life of the drive?

Why would you possibly need write caching on an SSD drive?

Save Nand gates from redundant writes, increase performance of boot drive OS, the benchmarks for this drive with and without the cache are impressive. I am just wondering if win 10 32 bit with 4gb of ram will see any benefit other than benchmarks, eg. real world.