TalkChess.com

[Roy Brunjes]

My MacBook Pro processor (2.3 GHz i7) runs only 3.57 times faster than an iPad 2 (comparing stockfish 2.2.2 speeds on both CPUs).

3.57x faster implies roughly 60 Elo strength (I see 35 Elo per doubling these days, not the 50 or so that used to seem the norm about 4-5 years ago). If that holds, then Stockfish 2.2.2 on CEGT is rated roughly 2973, so perhaps 2900 (on the CEGT scale) would seem the right neighborhood for the iPad 2 version of Stockfish.

Even if we allow for some pessimism, perhaps 2800? Pretty darn strong actually.