The Asus S550CA supports a faster memory clock speeds supported by processor than most ultrabooks that have been around for around the same time as it. This Asus portable PC 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. This Asus notebook PC also 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 across all portable PCs of a similar age and spec to the S550CA.
The worst supported memory clock speeds supported by processor amongst comparable types of notebook PC is 133MHz.