The NP540U3C supports a faster memory clock speeds supported by processor than most ultrabooks that have been around for more than two years. This laptop supports a 1,600MHz processor memory clock speed, whereas most ultrabooks that were released more than two years ago support a 133MHz processor memory clock speed. In addition, this portable PC supports 1 and 333MHz processor memory clock speeds.
A 1,600MHz processor memory clock speed is actually the best supported memory clock speeds supported by processor amongst all laptops of this age and spec.
The worst supported memory clock speeds supported by processor across similar types of notebook PC is 133MHz.