The Latitude E6430 supports a 1,600MHz processor memory clock speed which is faster than most similar spec portable PCs that were released around the same time as it. Most medium processor core notebook PCs that were released more than two years ago support a 133MHz processor memory clock speed. This portable PC also supports 1 and 333MHz processor memory clock speeds.
This laptop's memory clock speeds supported by processor (1,600MHz) is actually the best supported memory clock speeds supported by processor across all laptops of a similar type and age to the Latitude E6430.
Across comparable types of laptop the worst supported memory clock speeds supported by processor is 133MHz.