Laptop LG S1-MDGBG uses Core Duo T2500 2.0GHz processor, and notebook LG S1-MDGBG uses Core 2 Duo T5600 1.83GHz processor.
TFT screen on both monitor is 15.4" large.
Maximum screen resolution (1280x800) is same on both laptops.
Sony Vaio VGN-FE31Z came with more RAM memory - 2GB comparing to 1GB on LG S1-MDGBG.
With maximum 2GB of RAM it can support Sony Vaio VGN-FE31Z can feel a bit more proud than LG S1-MDGBG.
LG S1-MDGBG is a bit less heavier with its 2.8kg, comparing to 2.82kg.
Video card in use in LG S1-MDGBG is ATI Radeon X1600 and in Sony Vaio VGN-FE31Z is Nvidia Go 7600.
LG S1-MDGBG seems to be better for gamers with 256MB of dedicated video memory.
More hard drive space were at Sony Vaio VGN-FE31Z (200GB is contast to 100GB).
You can upload/download pictures using built-in bluetooth on these laptops with small devices (i.e. mobiles, digital cameras).
Infrared connection has only Sony Vaio VGN-FE31Z.
No firewire connection on model LG S1-MDGBG.
PCMCIA useful for some TV card for laptops is built in both laptops.
Both notebooks have cardreaders.
It is bad that these laptops cannot be connected to some new monitors since they don't have DVI.
LG S1-MDGBG only has TV output.
Web camera is built in Sony Vaio VGN-FE31Z (the another hasn't any) and that is useful for video conferencing.
Operating system is XP Pro on LG S1-MDGBG and XP Media Center on Sony Vaio VGN-FE31Z.
Only Sony Vaio VGN-FE31Z has some additional software : Adobe Acrobat Elements 7.0, Works, Photshop Elements, DV Gate Plus, WinDVD, Roxio Digital Media SE7, Norton Internet Security 2006, Skype 2,0.
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