Which is better 3G or GPRS to surf mobile internet with laptop?

Question

Ive just subscribe to Vodaphone mobile connect n intend to use it for client presentation out of office. When tested the device at shop, download speed was great. However when tested at home at around 9pm and all the way past 2am in the morning the download was horrid. Could it be due to heavy traffic during that time? Im using 3G not GPRS as the main connection, since the salesman says 3G has better speed than GPRS.

Answer 1

3G has a higher theoratical speed then GPRS, but it depends on if Vodafone had capped the connection.

Answer 2

GPRS is very slow.