The Aspire E1-572 supports a 1,600MHz processor memory clock speed which is faster than most portable PCs of this spec and age. Most portable PCs of this type and age support a 133MHz processor memory clock speed. This notebook PC also supports 1 and 333MHz processor memory clock speeds.
This notebook PC's memory clock speeds supported by processor (1,600MHz) is actually the best supported memory clock speeds supported by processor across all portable PCs of a comparable spec and age to the Aspire E1-572.
Across similar types of notebook PC the worst supported memory clock speeds supported by processor is 133MHz.