The Aspire E5 supports a faster memory clock speeds supported by processor than most portable PCs of a comparable type and age to it. This portable PC supports a 1,600MHz processor memory clock speed, whereas most medium processor core laptops that were launched around the same time as it support a 133MHz processor memory clock speed. In addition, this Acer notebook PC 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 portable PCs that have been around for more than two years.
The worst supported memory clock speeds supported by processor amongst similar types of laptop is 133MHz.