The ProBook 650 G1 supports a 1,600MHz processor memory clock speed which is faster than most portable PCs of this type and age. Most laptops of this age and spec support a 133MHz processor memory clock speed. This notebook PC also 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 medium processor core laptops that came out more than two years ago.
The worst supported memory clock speeds supported by processor across similar types of notebook PC is 133MHz.