Difference between wireless cards

How should one choose the wireless card when customizing a laptop?

This is the card options customizing a laptop from xoticpc:

Built-in 802.11 Wireless B/G/N - Stock Wireless Card + Bluetooth
Intel® Advanced-N 6230 - 802.11A/B/G/N Wireless LAN Module + Bluetooth ( + 25 )
Intel® Ultimate-N 6300 - 802.11A/B/G/N Wireless LAN Module ( + 35 )
Bigfoot Networks Killer™ Wireless-N 1102 ( + 40 )

I currently have the advanced-n 6250 and uses verizon fios. Speedtest.com shows about 15Mbps, while wired to the same connection peaks at 20Mbps. Would downgrading to the most basic card and the most advanced card show a real difference?

 

Depends on what that built in one is (probably a generic Broadcom/Realtek chip).

I found Intel WLAN cards have the least issues and have the most stable connections.

 

Would there be a real speed difference if I upgrade from intel advanced-n to ultimate-n?

 

Only if you have a wireless router capable of a 450Mbps connection.

There would be no difference in terms of internet speed, as your limiting factor here is the internet bandwith of your connection.

 

I see, thanks.

 

upgrading you may see no difference, downgrading you may. If you use a wireless router, DLNA to the TV, Streaming or other type of periphials/features. If the FIOS router is not Drafn I would suggest getting one hardwired to theirs and connect through that.

 

The stock Westel router is G router.

 

I would get a Draftn then, since it is your equipment you could get one capable of the 450 Mbps. Since most other periphials do not use the 450, and usually are just G connections, it may not be worth it.

Now if you have a few laptops using the wireless and the periohials like printer, TV cameras and what not hardwired the 450 may be a good choice for all the PC's. Just remember the LAN bandwidth over wireless is shared between the devices, the more you can keep off wireless the better. The more that has to be on wireless the faster the pipe the better.............