What can I do with an old iMac?

[Eug]

Nice.

Yep, 4 GB is perfectly fine for a surf/email/iTunes machine. Big improvement over 2 GB.

OTOH, on my Win 7 machine, which also is a light use machine, I notice very little improvement going from 4 GB to 8 GB.

BTW, my Core 2 Duo MacBook Pro with 4 GB DDR2 RAM and nVidia GeForce 9400M GPU sometimes feels faster than my Core i7 quad-core iMac with 12 GB DDR3 RAM and 1 GB ATI Radeon HD 5750, because the MBP has an SSD and the iMac doesn't.

 

[redheeler]

BTW, my Core 2 Duo MacBook Pro with 4 GB DDR2 RAM and nVidia GeForce 9400M GPU sometimes feels faster than my Core i7 quad-core iMac with 12 GB DDR3 RAM and 1 GB ATI Radeon HD 5750, because the MBP has an SSD and the iMac doesn't.

My 27" 2010 iMac has a 7200 RPM HDD on Yosemite, really slows it down. I couldn't even imagine going back to an HDD in my main machine, which I am proud to say I haven't had to do since 2012. Same goes for retina displays, a must have for me as the difference is huge.