Central processor unit in Sony Vaio VGN-FE31Z is Core 2 Duo T5600 1.83GHz and in Sony Vaio VGN-FE28B is Centrino Duo T2300 1.66Ghz.
Both laptop models came with Intel 945PM Express chipset.
TFT screen on both monitor is 15.4" large.
Both of compared laptops : Sony Vaio VGN-FE31Z and Sony Vaio VGN-FE28B have the same maximum screen resolution (1280x800).
Sony Vaio VGN-FE31Z came with more RAM memory - 2GB comparing to 1GB on Sony Vaio VGN-FE28B.
Both laptops use same RAM memory (DDR2).
There are no empty RAM slots on both of these models.
Around 3 is duration of accumulators built in both Sony Vaio VGN-FE31Z and Sony Vaio VGN-FE28B.
Sony Vaio VGN-FE31Z could be described as less heavier with its 2.82kg, comparing to 2.95kg .
Video card inside Vaio VGN-FE31Z is Nvidia Go 7600 and other laptop has Nvidia Go 7400 inside.
Sony Vaio VGN-FE31Z had more hard drive space (200 GB) - definetly something which users who think to hold movies on it will certainly like.
Mobile phones and cameras nowadays use bluetooth for its multimedia data and they can connect only with Sony Vaio VGN-FE31Z using built in bluetooth connection.
Infrared isn't available on both models and therefore they cannot communicate with some small devices.
No firewire connection on model Sony Vaio VGN-FE28B.
Both laptops have built-in modem which you need somewhere where broadband internet isn't available.
On fast networks (1Gbit/s) these notebooks will work only 100Mbit/s since they cannot achieve more.
Cardreader in both laptops can read 1 different card types.
These laptops don't have DVI output to allow you to see its screen on some bigger modern TFT monitors.
The number of USB ports is 3 on both.
Sony Vaio VGN-FE31Z has advantage in web camera which is useful for Internet telephony .
Operating system is XP Media Center .
Sony Vaio VGN-FE31Z came with Adobe Acrobat Elements 7.0, Works, Photshop Elements, DV Gate Plus, WinDVD, Roxio Digital Media SE7, Norton Internet Security 2006, Skype 2,0 as additional software, and Sony Vaio VGN-FE28B came with Adobe Acrobat Elements 7.0.
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