Hello,
I have got an IMac 24'' with 2GB of Ram, 250GB Hdd, 7300 GT, intel Core2Duo
http://www.everymac.com/systems/apple/imac/specs/imac-core-2-duo-2.16-24-inch-specs.html
This iMac is not official supported for Yosemite, so I tried to install Apple OS X Yosemite.....it works but very...