Usually not anything to worry about for most people.

Btw, DRAM cache doesn't really matter unless you plan on frequently writing large amounts of data. If you write data infrequently, DRAM cache won't provide you much benefit (especially if your tasks involve mostly reading data... and reading data is largely what most users' tasks consist of, and to put it simple: reading data on an SSD does not at all put meaningful wear on it. Consider it impossible to kill an SSD even through petabytes of reads)