Ski, you hit the nail on the head, 1MHz it is. I tested it in hardware and looked at the scope. It would apply to any PIC12/16/18 with either CCP or ECCP at 8MHz clock. You could get 2MHz (fFOsc) out of CLKO though.

BTW, the settings would be:
PR2 = 1
CCPR1L = 1