Yes it would be considered old hat. However it should outrun an AMD 2ghz. Asock mobos are cheap entry level and that can affect things a lot.
I have had a D 3ghz for over three years and for speed in processing it is slower than a 1.8 core 2 duo but for many operations it does seem faster.
So far I have not thought to change as it runs XP and W7 well.I also have 2gb ram.