What is Long term Data Endurance (LDE)?
LDE is the first industry metric that expresses how much data can be written to a SSD during its lifespan in a simple, accurate and relevant number. The LDE specification was developed by SanDisk and submitted to JEDEC as a benchmark to enable users to compare the data endurance of SSDs from various manufacturers. Based on typical end-user activity, LDE provides the total number of data writes, expressed in terabytes written (TBW) that can be performed during the SSD lifespan. Data is written using typical PC transfer size distribution of writes, written at a constant rate over the life of the SSD and data is retained for at least 1 year upon LDE exhaustion. A typical client PC user writes 4GB/day, based on SanDisk internal measurements.
