Memory Bandwidth Calculator

by

Use this tool to calculate the memory bandwidth

Enter the following:

  • Memory Clock Frequency – this is the clock frequency (in MHz) that is input to the memory module
  • Bus Width in bits
  • Clock multiplier is a factor depending on the memory type. In the case of DDR for instance this number is 2.

Formula

Memory Bandwidth = Clock Frequency * Multiplier * Bus Width * (1/8)

Example Calculation

For a clock frequency of 500 MHz; multiplier of 2 and Bus Width of 256 Bits, the memory bandwidth is 32 GB/s.