See
http://www.cryptopp.com/benchmarks.html. At the bottom of the page says it was last edited on 2009.
The CPU is a Intel Core 2 1.83 GHz. The performance is 3.4 MHash/sec (111 MiB/sec)
So who's making FUD ?
How do you get 3.4 MH/s from 111 MiB/sec. The SHA-256 digest is 512 bytes. Thus 1 hash per second would be 512 bps. However bitcoin does a double SHA-256 hash so 111 MiB/sec * 8 / 1024 = 0.867 MH/s = 867 KH/s. The miner in v0.1 was very crude it lacked acceleration using SSE2 making it significantly slower, that came later with the first dedicated CPU miners.
On edit: fixed bits vs bytes error. DOH. Thanks mrb.