Chiplet Bandwidth Density Calculator

Estimate raw die-to-die bandwidth density from trace density, transfer rate, and bits carried per transfer. Bandwidth = traces/mm × GT/s/trace × bits/transfer ÷ 8000 in decimal TB/s/mm; encoding and protocol overhead are not deducted.

Description

Calculate raw chiplet edge bandwidth density from traces per millimeter, transfers per second per trace, and bits per transfer.

Estimate raw die-to-die bandwidth density from trace density, transfer rate, and bits carried per transfer. Bandwidth = traces/mm × GT/s/trace × bits/transfer ÷ 8000 in decimal TB/s/mm; encoding and protocol overhead are not deducted.

When to use Chiplet Bandwidth Density Calculator

  • Calculate raw chiplet edge bandwidth density from traces per millimeter, transfers per second per trace, and bits per transfer.
  • Compare fabrication or device scenarios while holding coefficients and unit conventions constant.
  • Check a hand calculation before moving to a higher-fidelity process, circuit, or TCAD model.

How the calculation works

GT/s counts transfers, not bytes; a one-bit serial transfer requires division by eight when converting bit rate to byte rate.

bandwidth[TB/s/mm] = traces/mm · GT/s/trace · bits/transfer / 8000

Interpreting the result

GT/s counts transfers, not bytes; a one-bit serial transfer requires division by eight when converting bit rate to byte rate.

Assumptions and limitations

  • The result is raw signaling capacity before encoding, framing, error correction, flow control, lane repair, and protocol overhead.
  • Use parameters measured for the same material, geometry, temperature, and operating regime whenever the result informs engineering work.
Don't forget to set a bookmark for tool.io!
Privacy | Imprint | Cookies