The authors noted that, as a result, the amount of die used for the memory array itself has declined over time from 70–78% with SDRAM and DDR1, to 47% for DDR2, to 38% for DDR3 and potentially to less than 30% for DDR4.
該書的作者也指出，這樣的結果導致記憶體陣列本身用到的晶圓面積佔記憶體晶片的面積比，隨著時間推移，下降至SDRAM、DDR晶片的70%至78%，DDR2的47%，DDR3的38%，DDR4更可能低至30%以下。