Windows XP Driver Versions (6.39 Standalone package)
Audio driver 4.60 (WHQL)
Audio utilities 4.51
Ethernet driver 4.68 (WHQL)
SMBus driver 4.45 (WHQL)
Installer 4.60
IDE NVIDIA driver 5.07 (WHQL)
Windows XP Driver Versions (6.53 Standalone package)
Audio driver 4.60 (WHQL)
Audio utilities 4.51
Ethernet driver 4.75 (WHQL)
SMBus driver 4.45 (WHQL)
Installer 4.60
IDE NVIDIA driver 5.18 (WHQL)
You can check by looking in device manger for the driver versions for the above components. As you can see the only difference between the two versions is the Ethernet and IDE drivers.