The Lenovo S531 supports a 1,600MHz processor memory clock speed which is faster than most comparable spec laptops that were launched around the same time as it. Most similar spec portable PCs that were released more than two years ago support a 133MHz processor memory clock speed. This Lenovo portable 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 amongst all portable PCs of a similar age and type to the S531.
The worst supported memory clock speeds supported by processor amongst similar types of laptop is 133MHz.