The company that provides the amazing Geekbench benchmarking software, Primate Labs, has run its tests on the new 21.5-inch iMac and found that it's a pretty impressive piece of hardware.
Primate Labs tested all of the configurations of the new iMac, but it's the top-of-the-line unit sporting an Intel Core i7-3770S clocked at 3.1 GHz that tops the speed test for all iMacs. To quote the benchmark post, "The benefits of the new Ivy Bridge processors are clear; the new high-end 21.5-inch iMac is almost 10 percent faster than the old high-end 27-inch iMac."
The benchmark score for the high-end 21.5-inch iMac was 12,447, while that of the old (mid-2011) high-end 27-inch iMac was 11,410. A comparison to the high-end 2012 Mac mini shows that it's no slouch, either -- it came in at 11,595. Of course, if you want to kick some serious computing butt, you'll still need to get a Mac Pro -- the fastest 12-core unit weighs in at a Geekbench score of 22,271.
It should be interesting to see the results for the 27-inch iMac that will be shipping in about two weeks. The top-end unit features a 3.4 GHz Intel Core i7 that will likely leave the 21.5-inch model in the dust.