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PCIe bandwidth comparison

Calculate locally using the displayed units and model. Floating-point estimates exclude real-world tolerances; verify specifications before design use.

pcie-bandwidth-calculatorLOCAL WORKSPACE

Enabling local controls…

Inputs and settings

Processed in this tab without uploading or storing inputs. Each text field is limited to 32 KiB and complete output to 1 MiB; additional format and model limits apply.

Results

Review the settings and run. Editing inputs clears old results.

Processing model and limits

Gen1/2 use 8b/10b; Gen3/4/5 use 128b/130b. Gen6 maximum data rate 8 GB/s/lane before FLIT/FEC and packet overhead. Decimal GB/s per direction, not application throughput.

Data and model checked: Model reference ↗ToolHub source controls ↗

How to use this tool

Load the example, confirm field units and processing rules, then run locally. Editing any input clears the old result. Copy or download the complete output explicitly.

When not to use it

Gen1/2 use 8b/10b; Gen3/4/5 use 128b/130b. Gen6 maximum data rate 8 GB/s/lane before FLIT/FEC and packet overhead. Decimal GB/s per direction, not application throughput.