Big differences in interest rates

pingin

Registered User
Messages
290
Pardon my complete ignorance but am I missing something? According to one comparison site Nationwide UK are offering 5.04% gross on a savings account, while State Savings are giving 14% gross. What's the difference?
 
The time period over which the return is calculated.The 14% state savings is over 6 years(ie about 2% a year compounded).