Central processor unit in Sony Vaio VGN-FE660G is Core Duo T2300 1.6GHz and in Panasonic Toughbook CG-18 is Centrino 753 Ultra Low Voltage 1.2GHz.
Screen size on Sony Vaio VGN-FE660G is larger, 15.4 comparing to 10.3 on Panasonic Toughbook CG-18.
Maximum declared screen resolution on Vaio VGN-FE660G (1280x800) beats Toughbook CG-18 (1024x768).
You should expirience less swapping on Sony Vaio VGN-FE660G than on Panasonic Toughbook CG-18 when you run many programs, since Sony Vaio VGN-FE660G has 1GB of RAM, comparing to 0.5GB on other model.
For people who travells , Panasonic Toughbook CG-18 might be better choise with 2.1kg in weight, comparing to 2.8kg weight with Sony Vaio VGN-FE660G.
Video card in use in Sony Vaio VGN-FE660G is Intel 950 and in Panasonic Toughbook CG-18 is Intel 915GMS.
These laptops use part of main RAM memory for their graphic cards.
More storage for multimedia were available at Sony Vaio VGN-FE660G (greater space on hard disk).
Lack of bluetooth on Sony Vaio VGN-FE660G might mean that you need to buy externall bluetooth dongle for downloading and uploading pictures from mobile phone or camera.
Infrared is missing on Sony Vaio VGN-FE660G.
No firewire connection on model Panasonic Toughbook CG-18.
Only Sony Vaio VGN-FE660G has PCMCIA.
Internal modem is available in both models and you will need it on some rare location without proper Internet .
Cardreader is inside only Sony Vaio VGN-FE660G.
If someone still uses old floppy disks (which we don't recommend since they are quite obsolete), Panasonic Toughbook CG-18 has floppy drive.
They don't have DVI for new monitors.
Operating system is XP Media Center on Sony Vaio VGN-FE660G and XP Pro on Panasonic Toughbook CG-18.
Only Sony Vaio VGN-FE660G has special software pack : Works 8.5.
Notable advantages of these notebooks are : touch pad and touch screen for Panasonic Toughbook CG-18 and for Sony Vaio VGN-FE660G.
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