Processor in HP Compaq nx8220 is Pentium M740 1.73GHz and in Sony Vaio VGN-FE31Z is Core 2 Duo T5600 1.83GHz.
Both nx8220 and Vaio VGN-FE31Z have 15.4" screen size.
We got more memory (2GB) in Sony Vaio VGN-FE31Z than in HP Compaq nx8220 (0.5GB).
The RAM memory in use on both laptops is DDR2.
Number of free RAM slots is higher on nx8220 - 1.
Graphic card inside nx8220 is ATI X600 and other laptop uses Nvidia Go 7600.
Graphic cards on HP Compaq nx8220 have its own memory (64MB) and therefore mainboard's memory controller works faster.
Sony Vaio VGN-FE31Z had more hard disk space (200 GB) - definetly something which users who plan to hold movies on it will like.
Both laptops are equipped with bluetooth communication device which allows them to share data with your other bluetooth equiped devices.
Infrared, which isn't available on both of these models, unable these laptops to communicate with some small devices - like some mobile phones.
HP Compaq nx8220 doesn't support firewire connections.
PCMCIA is available only on Sony Vaio VGN-FE31Z and it is needed by some TV cards, external hard drives and external modems.
Both laptops have cardreader.
These notebooks don't have DVI output to allow you to see screen on some bigger modern monitors.
Web camera is built in Sony Vaio VGN-FE31Z (the another hasn't it) and it is useful for video conferencing.
nx8220 drives XP Pro and Vaio VGN-FE31Z drives XP Media Center operating system.
Only Sony Vaio VGN-FE31Z has special software pack : Adobe Acrobat Elements 7.0, Works, Photshop Elements, DV Gate Plus, WinDVD, Roxio Digital Media SE7, Norton Internet Security 2006, Skype 2,0.
More Information
More
Laptops comparisons:
Sony Vaio VGN-SZ220 vs Toshiba Qosmio G35-AV660.
Acer Aspire 3681WXMI vs Sony Vaio VGN-FE28B.
Acer TravelMate 4072NWLMi vs BenQ R55.G24.
Gateway MX6448 vs HP Pavilion dv6108nr.
HP dv9008nr vs BenQ S53W.G01.
Sony Vaio VGN-AR190G vs Gateway MX6912.
BenQ R55.G24 vs Toshiba Satellite M60-182.
Sony Vaio VGN-SZ220 vs Acer Aspire 9512WSMi Gamer.
Asus Z5303JC vs Toshiba Satellite L100-1200.
Sony Vaio VGN-FS980 vs Samsung M700-1860.
Sony Vaio VGN-FS980 vs Gateway MP6954.
Sony Vaio VGN-FE660G vs Panasonic Toughbook CF-74.
Sony Vaio VGN-FE31Z vs Toshiba Satellite P105-S9722.
HP Pavilion dv6108nr vs Sony Vaio VGN-AR230G.
Sony Vaio VGN-SZ220 vs Acer TravelMate 4602WLMI.
Gateway MX3414 vs Fujitsu-Siemens Amilo Xi 1546.
Panasonic Toughbook CF-74 vs Sony Vaio VGN-FE31Z.
Samsung X11-T5500 CeSeba vs Toshiba Qosmio G35-AV660.