Earlier this week, Samsung announced it will soon start shipping a new addition to its Spinpoint M7 hard drive lineup, with the 2.5-inch internal HDD. At 640GB, it's the largest offered, topping the current 500GB unit. Also compared to the 500GB unit, the new hard drive has a 28 percent increase in areal density, now at 516 gigabits (64.5 gigabytes) per square inch for each 320GB platter. The new hard drive is meant for high-performance notebooks that require greater shock resistance.
