Instructions Per Second Calculator
Work out instructions per second instantly with clear inputs, formula shown and shareable results.
About Instructions Per Second Calculator
Instruction throughput is clock times IPC times cores. Utilisation matters because real workloads rarely keep every core busy — memory stalls, synchronisation and load imbalance mean 50-70% is common, so peak figures overstate delivered performance substantially.
Formula
Instruction throughput
GIPS = clock (GHz) x IPC x cores x utilisation
Worked example
With the default values below, Instructions Per Second Calculator returns Throughput of 46,592. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Clock frequency
- 2.8 GHz
- Instructions per cycle
- 3.2 IPC
- Cores
- 8 cores
- Average core utilisation
- 65 %
Results
- Throughput
- 46,592 MIPS
- Throughput
- 46.59 GIPS
- Per-core throughput
- 8.96 GIPS
- Peak throughput
- 71.68 GIPS
Step by step
- 1Values used
- 2Instruction throughput
- 3Throughput= 46,592 MIPS
- 4Throughput= 46.59 GIPS
- 5Per-core throughput= 8.96 GIPS
- 6Peak throughput= 71.68 GIPS
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Why is MIPS a poor benchmark?
Instruction counts differ between architectures and compilers. A CISC instruction may do the work of several RISC ones, so MIPS says nothing about useful work done.
What should I use instead?
Application-level benchmarks that measure work completed — SPEC, or better still your own workload.
Related Calculators
You might also need
- Cost Per Die CalculatorAlso in Semiconductor, VLSI & Hardware Design
- Wafer Die Per Wafer CalculatorAlso in Semiconductor, VLSI & Hardware Design
- Amdahl Speedup CalculatorAlso in Semiconductor, VLSI & Hardware Design
- ATE Throughput CalculatorAlso in Semiconductor, VLSI & Hardware Design
- Bitstream Size CalculatorAlso in Semiconductor, VLSI & Hardware Design
- Burn In Time CalculatorAlso in Semiconductor, VLSI & Hardware Design