COMPUTING PERFORMANCE

COMPUTING PERFORMANCE

1. CLOCK SPEED

   • How many times the CPU can perform the fetch decode execute cycle per second.
   • The faster the clock speed the faster the CPU will perform the fetch-decode-execute cycle.
   • THE CLOCK SPEED IS MEASURED IN Hertz (Hz)
   • 1Hz – 1 cycle per second
   • 1KHz – 1000 (thousand) cycles per second
   • 1MHz – 1,000,000 (million) cycles per second
   • 1GHz – 1,000,000,000 (billion) cycles per second

2. CACHE

   • The memory in the CPU needed to store frequently accessed data.
   • more cache means more memory

3. CPU

   • Fetches, decodes and executes instructions.
   • (Central processing unit)

4. CORES

   • The number of independent processors in the CPU which run the fetch decode execute cycle simultaneously.
   • Dual core: 2 independent processors in the CPU working
   • Quad core: 4 independent processors in the CPU working
   • Simultaneously: At the same time.