Processor in Gateway MX6931 is Core 2 Duo T5500 1.66Ghz and in HP Compaq nx8220 is Pentium M740 1.73GHz.
TFT screen on both monitor is 15.4" large.
More RAM means less swapping when you run many programs at once and therefore Gateway MX6931 with 2GB RAM is better choise than HP Compaq nx8220 with 0.5GB.
Both Gateway MX6931 and HP Compaq nx8220 laptops have same amount of maximum supportable RAM memory - 2GB.
There are 1 free RAM slots on nx8220 rather than 0.
Graphic is built around Intel 950 on MX6931, but graphic on other laptop is built using ATI X600.
Graphic card is better on HP Compaq nx8220 with embedded 64MB of memory.
Gateway MX6931 laptop is more suitable with its 160GB hard disk for storing bunch of media files like music .
Don't forget that you might not be able easily to upload/download pictures on Gateway MX6931 from your camera and mobile phone during the lack of bluetooth connection.
If you have infrared enabled devices if you buy Gateway MX6931 you won't be able to communicate with them.
No firewire on HP Compaq nx8220 unable them to connect to some camcorders.
PCMCIA is available only on Gateway MX6931 and it is needed by some TV cards, external hard drives and external modems.
Cardreaders are inside both of these laptops.
None has DVI output so you cannot connect them to some new monitors.
Only MX6931 has TV input.
Both laptops are equipped with stardard 54Mbit/s internal wireless.
These notebooks aren't very suitable for video conferencing since they haven't web camera inside.
MX6931 drives XP Media Center and nx8220 drives XP Pro operating system.
Only Gateway MX6931 has some additional software : Works 8.5, Money 2006.
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