It will not operate without a CPU.
iMac
The CPU speed, and processor speed is the amount of cycles that a CPU can perform per second.CPU speed is not a good indicator of CPU performance.
It uses an Intel Quad Core i5 or i7 processor. This is an excellent CPU also used on Windows PCs.
cpu fan speed of 3590 RPM normal(CPU 73c)
There are lots of programs out there that will help someone perform a processor speed test. Some of these programs include; CPU Speed Professional, CPU Speed Pro Software, and CPU Speed Test Software.
a special high-speed storage area in cpu.
It determines the speed at which the CPU operates.
Increasing CPU speed will maintain the current level of CPU utilization, in the case where the process mix is compute bound, or decrease CPU utilization, in the case where the process mix is I/O bound.
the ability to modify CPU clock speed as needed
DRAM
bytes