I think there is confusion between MH/s (mega hash per second) with MHz (mega hertz, clock frequency).
No.
Current implementations are made so each clock does one "turn" of the sha256 algorithm, but on multiple stages, usually 128 to make a complete 2-sha256 bitcoin full computation (sometimes called a "stack" )
So 1 chip with one complete stack gives 1 complete computation each clock in such implementations, and therefore Mhz = MH/s
That was my question : is there only one stack in this chip ?
If you had 2 stacks in the chip, you would have had MH/s = 2* MHz