Shaped ~ In layman’s terms, the shaped service prioritises keystroke activities - things you do while sitting in-front of your PC. So when you’re surfing your favourite site, doing your banking or checking you e-mail, this option will work best for you.
For those of you that need to know more, read on. The shaped service distinguishes between the various protocols used over the Internet. The main priority is HTTP. At present, all international HTTP traffic is transparently cached for ADSL users. All international un-cached data is shaped. The following un-cached protocols are prioritised on the network: HTTP (in certain cases HTTP is not cached due to website incompatibilities), HTTPS, FTP, Mail (POP3, SMTP and IMAP), SSH and TELNET. Any protocol not mentioned above will receive a lower priority on the network.
Unshaped ~ In layman’s terms, whichever activity you are doing or leaving your PC to do, while not there, all available bandwidth will be used for this application or protocol.
This service will offer you unshaped international bandwidth and a higher data transfer rate. The unshaped service will not shape the un-cached protocols. All protocols will therefore share the available bandwidth equally. Similarly, local bandwidth will remain as is with no shaping implemented. Keeping this in mind, this service is typically designed for a niche market including, for example, your typical Forex Trader, specific gaming applications, secure work from home options and VPN’s. All these applications can use unfamiliar protocols, which are not necessarily bandwidth intensive but require an unshaped service to work optimally.
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and there are like way too many threads here to see if this question has already been asked and answered a thousand times.
