First let me say I am not an official testing laboratory....
Also please note that these are/were actual 32bit installations, not Live CD/DVD tests, and not virtual machines.
Legacy hardware: DELL Desktop GX-280, purchased November 2004. P4 processor with 2.5GB RAM and 40 GB hdd.
The first screen shot is Mint 13 Mate (v 1.4), and the second is Mint 14 Cinnamon (v 1.6.7). Screen shots were take at idle.
Many, if not all the reviews I've read recently seem to profess that Cinnamon has lower memory use, but this indicates the opposite.