TBW see here :
Estimating terabytes written (TBW)
Usually, manufacturers give an estimate with the so-called terabyte(s) written (TBW)– especially when it comes to enterprise SSDs, but also for consumer versions. Because of the fact that by using Wear-Leveling the data will be distributed evenly over all cells, this figure is supposed to tell how much data can be really written in total on all cells inside the storage chips and over the whole life span.
A typical TBW figure for a 250 GB SSD lies between 60 and 150 terabytes written. That means: To get over a guaranteed TBW of 70, a user would have to write 190(!) GB daily over a period of one year (in other words, to fill two thirds of the SSD with new data every day). In a consumer environment this is highly unlikely.
Then Syria map for only one hour of gaming written about 11 gibabite...I think ist very bad optimized