I have a dell precision m6400 700gb hd, 8gb ram.

I reinstalled windows 7 32bit  about 1 month ago from a iso I got from digital river a while back.

the reinstallation came with a wifi network adapter driver called "Intel(R) wifi link 5100 agn".

I guess it was preinstalled in the iso. and I currently have it installed on my pc.

I don't have problems with it, but I was wondering do I need to upgrade it?

should I keep the network adapter I have installed? or upgrade from 1 of these and which one(s) do I choose.

the links on this page: http://www.dell.com/support/home/us/en/19/product-support/product/precision-m6400/drivers 

show several network adapters like:

Dell Wireless LAN 1397/1510 Half MiniCard Driver

This package provides the Dell Wireless WLAN 1397 (4312bg)/1510 (4322bg) Half MiniCard Driver and is supported on Latitude, Precision and Op...
     View details    

 
R260738.exe | Hard-Drive (79 MB)
 

Network
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Release date 17 Jun 2010

 
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Last Updated 05 Mar 2014 
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Recommended
 

Version 5.60.48.35,A36 
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Intel (R) WiFi Link 5300/5100/ 5000 Series WLAN Half-Mini Card Driver     View details    

 
INTEL_MULTI-DEVICE_A01_R249604.exe | Hard-Drive (41 MB)
 

Network
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Release date 02 Jun 2010

 
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Last Updated 11 Dec 2013 
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Recommended
 

Version 13.0,A01
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Intel® WiFi Link 5150 Driver     View details    

 
INTEL_INTEL--R--WIFI-LINK-51_A01_R259644.exe | Hard-Drive (42 MB)
 

Network
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Release date 02 Jun 2010

 
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Last Updated 27 Dec 2013 
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Recommended
 

Version TRWFW1127D,A01
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Intel® WiMAX Link 5150 Driver     View details    

 
INTEL_INTEL--R--WIMAX-LINK-5_A02_R262865.exe | Hard-Drive (10 MB)
 

Network
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Release date 19 Mar 2010

 
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Last Updated 23 Dec 2013