The Lenovo T440s supports a faster memory clock speeds supported by processor than most ultrabooks that were launched around the same time as it. This portable PC supports a 1,600MHz processor memory clock speed, whereas most portable PCs that are a similar age to it support a 133MHz processor memory clock speed. This Lenovo laptop also supports 1 and 333MHz processor memory clock speeds.
A 1,600MHz processor memory clock speed is in fact the best supported memory clock speeds supported by processor amongst all similar spec notebook PCs that were launched more than two years ago.
The worst supported memory clock speeds supported by processor across comparable types of portable PC is 133MHz.