[n_e]

The figure is likely wrong.

My Mac is currently using 9GB of RAM including 6.5GB of cached files with Safari and a few other apps opened. They likely forgot to subtract the cache from the used memory.

[petee]

That's impressive on an 8GB system!

[thechao]

90 would've been impressive. 9 out of 8 is rookie numbers.

[hirvi74]

My Neo is currently sitting at 5.79 GB Used, 2.15 GB cached, thus 3.64 GB while Safari is open in the background and Activity Monitor is open in the foreground.