Core Duo T2400 1.83GHz was built in Sony Vaio VGN-SZ220 laptop comparing to Turion X2 Dual 1.6GHz in Gateway MX6448.
Screen size at Gateway MX6448 is quite larger with its 15.4" than Sony Vaio VGN-SZ220 with its 13.3".
In both laptops we've found 1GB of RAM.
Both notebooks use same RAM memory (DDR2).
If you have to move your notebook around frequently, Sony Vaio VGN-SZ220 have weight only 1.86kg, but Gateway MX6448 is quite heavier - 2.86kg.
Graphic card inside Vaio VGN-SZ220 is Nvidia Go 7400 and other laptop uses ATI XPRESS 1150.
Gamers might prefer Sony Vaio VGN-SZ220 since it seems it has better graphic card with 128MB of its memory.
120GB were on its hard disks.
Fast hard disk (5400 rpm) on Sony Vaio VGN-SZ220 beats another model.
These models have firewire (IEEE 1394) communication device embedded.
Both laptops have built-in modem which you need somewhere where broadband internet isn't available.
Both notebooks have cardreaders.
They don't have DVI for new monitors.
The lack of webcamera in both models makes them bad in video conferencing.
Both came with XP Media Center on them.
Additional software is Works 8.5, Money 2006 on Gateway MX6448 and Works 8.5 on Sony Vaio VGN-SZ220.
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