Central processor unit in Sony Vaio VGN-FE660G is Core Duo T2300 1.6GHz, and in laptop Acer Aspire 3681WXMI is Celeron M410 1.46GHz.
Screen size on Sony Vaio VGN-FE660G is larger, 15.4 comparing to 14.1 on Acer Aspire 3681WXMI.
Maximum screen resolution (1280x800) is same on both laptops.
For users who likes more memory Sony Vaio VGN-FE660G with 1GB is better than Acer Aspire 3681WXMI with 0.5GB of memory.
Acer Aspire 3681WXMI is less heavier with its 2.35kg, comparing to 2.8kg.
Video card in use in Sony Vaio VGN-FE660G is Intel 950 and in Acer Aspire 3681WXMI is Intel GMA900.
Acer Aspire 3681WXMI laptop uses up to 64MB of main memory for graphic and other up to 128MB.
Sony Vaio VGN-FE660G had more hard disk space (100 GB) - definetly something which users who plan to hold movies on it will certainly like.
If you need bluetooth don't forget the fact that it is available only at Acer Aspire 3681WXMI .
Sony Vaio VGN-FE660G have lack of infrared communication device.
No firewire on Acer Aspire 3681WXMI unable them to connect to some camcorders.
Both notebooks have cardreader which supports 5 different card types.
They don't have DVI for new TFT monitors.
Both laptops have 3 USB ports each.
Laptops are able to use standard 54Mbit/s wireless .
These laptops aren't really suitable for video conferencing since they haven't web camera embedded.
Vaio VGN-FE660G drives XP Media Center and Aspire 3681WXMI drives XP Home operating system.
There are additional software only on Sony Vaio VGN-FE660G and it is Works 8.5.
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