Differences between all the wireless options?

Could someone explain to me the advantages etc? Ive no idea what ive got in my x61, probably just the basic?

The x201 has 4 possible options

 

I second that, I am choosing now a T410s and I simply don't know what the difference is between those wireless options. thanks.

 

I swear ive been using 802.11g and i get the maximum bandwidth my provider allows me, if i had 802.11n it wouldnt make any difference! Are all those more expensive options basically incase i wanted to sit out in a cowfield 400m away from my house and still maintain the same connection strength? If so, think i'll go for the cheapo option!

 

I believe you can pick up more networks with the 6300 than with the basic ones. Signals should be slightly stronger too.

 

If you're just using the connection for browsing the Internet and you have a regular broadband connection, you're right to assume you likely won't notice a speed difference at a reasonable distance from the router. If you're doing other things like streaming HD videos from/to your laptop from/to other devices on your network, or you routinely move large amounts of data from one machine to another (backups, etc), then you may notice a differnece in the higher-end options... provided your router also has similar features. For example, the Intel 6300 WiFi option uses 3 antennas simulatenously to provide a "three stream" connection (if your router supports it) and can "triple" (probably not really--but definitely increase) your throughput.

 

Generally, the Intel wireless options have lower power usage than the Thinkpad WiFi BGN cards (made by Realtek, at least in the Tx00 series).

The more expensive Intel cards have an additional antenna for - theoretically - increased signal reception (and Wireless-N performance, if your router supports it).

 

the 3 antenna intel wireless card is far more sensitive than the 2 antenna version at picking up weak signal.