CPU on our Gateway MX6446 we've tested was Turion64 2.0GHz, and on HP Compaq nx8220 was Pentium M740 1.73GHz.
Both models have the same 15.4" screen size.
For users who likes more memory Gateway MX6446 with 1GB is better than HP Compaq nx8220 with 0.5GB of memory.
The RAM memory in use on both laptops is DDR2.
Video card inside MX6446 is ATI XPRESS 1150 and other laptop has ATI X600 inside.
Gamers might prefer HP Compaq nx8220 since it seems it has better graphic card with 64MB of its memory.
More storage for multimedia were available at Gateway MX6446 (greater space on hard disk).
Disadvantage of Gateway MX6446 is lack of bluetooth connection which you might need for some mobile devices and cameras.
Infrared, which is useful for communication with some mobile phones is available only on HP Compaq nx8220.
No firewire connection on model HP Compaq nx8220.
PCMCIA isn't built in HP Compaq nx8220.
Both notebooks have cardreaders.
None has DVI output so you cannot connect them to some new LCD monitors.
Operating system on MX6446 is XP Media Center and on nx8220 is XP Pro.
Only Gateway MX6446 has some additional software : Works 8.5, Money 2006.
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