Processor in Gateway MX6446 is Turion64 2.0GHz, and in laptop Sony Vaio VGN-FE31Z is Core 2 Duo T5600 1.83GHz.
Screen size on both models(Gateway MX6446 and Sony Vaio VGN-FE31Z) is 15.4".
More RAM means less swapping when you run many programs at once and therefore Sony Vaio VGN-FE31Z with 2GB RAM is better choise than Gateway MX6446 with 1GB.
Sony Vaio VGN-FE31Z has less weight (2.82kg), comparing to 2.86kg on another .
Graphic is built around ATI XPRESS 1150 on MX6446, but graphic on other laptop is Nvidia Go 7600.
More storage for multimedia were available at Sony Vaio VGN-FE31Z (more space on hard drive).
Sony Vaio VGN-FE31Z has faster hard drive (with 5400rpm).
Disadvantage of Gateway MX6446 is lack of bluetooth which you might need for some mobile phones and cameras.
Infrared is missing on Gateway MX6446.
Firewire is embedded in both models allows them to communicate with IEEE 1394 devices like some camcorders.
Both laptops have PCMCIA which allows to connect some TV cards for laptops.
Cardreaders are available in both notebooks.
None has DVI output so you cannot connect them to some new monitors.
Both laptops are equipped with stardard 54Mbit/s wireless.
Sony Vaio VGN-FE31Z has advantage in web camera which is very useful for Internet telephony with video.
Operating system is XP Media Center on both.
Additional software is Adobe Acrobat Elements 7.0, Works, Photshop Elements, DV Gate Plus, WinDVD, Roxio Digital Media SE7, Norton Internet Security 2006, Skype 2,0 on Sony Vaio VGN-FE31Z and Works 8.5, Money 2006 on Gateway MX6446.
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