There is a CPU with an internal clock frequency of 700 MHz. The number of clock cycles for executing instructions and their appearance rates are shown in the table below. What is the approximate performance (measured in MIPS) of this CPU? | Type of instructions | Number of clock cycles for executing instructions | Appearance rate (%) | |---|---:|---:| | Operation between registers | 4 | 30 | | Operation between memory and registers | 8 | 60 | | Unconditional branch | 10 | 10 |