Processor on our Acer TravelMate 4652LMi we've tested was Pentium M740 1.73GHz, and on Sony Vaio VGN-FE28B was Centrino Duo T2300 1.66Ghz.
Screen size at Sony Vaio VGN-FE28B is quite larger with its 15.4" than Acer TravelMate 4652LMi with its 15".
Graphic professionals might find Acer TravelMate 4652LMi model with its 1400x1050 maximum screen resulution more preferable.
We got more memory (1GB) in Sony Vaio VGN-FE28B than in Acer TravelMate 4652LMi (0.5GB).
Both Acer TravelMate 4652LMi and Sony Vaio VGN-FE28B notebooks have same amount of maximum supportable RAM memory - 2GB.
The RAM memory in use on both laptops is DDR2.
Duration time on accumulator on Sony Vaio VGN-FE28B and Acer TravelMate 4652LMi is the same - 3.3 hours.
Sony Vaio VGN-FE28B could be described as a bit less heavier with 2.95kg, comparing to 3kg .
Graphic is built around GMA900 on TravelMate 4652LMi, but graphic on other laptop is built using Nvidia Go 7400.
Hard disk on had 100GB of maximum capacity.
There are no bluetooth devices on Sony Vaio VGN-FE28B and that might be disadvantage.
There are no infrared embedded in Sony Vaio VGN-FE28B.
Keep in mind that these models don't have firewire which you might need by some video devices (although rarely).
Fast network (1Gbit/s) could be used on its full speed only by Acer TravelMate 4652LMi.
Sony Vaio VGN-FE28B has cardreader which reads 1 different card types.
It is bad that these laptops cannot be connected to some new LCD monitors since they don't have DVI.
Acer TravelMate 4652LMi only has TV output.
These laptops aren't really suitable for Internet telephony because they haven't web camera.
Operating system is XP Pro on Acer TravelMate 4652LMi and XP Media Center on Sony Vaio VGN-FE28B.
There are additional software only on Sony Vaio VGN-FE28B and it is Adobe Acrobat Elements 7.0.
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