# Bandwidth versus Throughput as a Pizza Shop

In a continuation of a talk amongst friends about the throughput versus latency tradeoff, we got confused about the difference between bandwidth and throughput.

While both are rates (quantity over time), bandwidth is the maximum rate while throughput is the rate actually used.

To continue the pizza shop analogy, if I have one oven that fits one
pizza can cook a maxmium of ten pizzas per hour, then my *bandwidth*
is ten pizzas per hour. But I don’t have to cook ten pizzas per
hour. If I leave the oven off, I can cook zero pizzas per hour. Or
maybe I only want to cook five pizzas per hour. The rate at which I
actually cook pizzas is my *throughput*.

How does this relate to the latency versus throughput tradeoff? And why is it a tradeoff between latency and throughput and not between latency and bandwidth? If your throughput is maxed out at your bandwidth, then latency is likely to be high. If your bandwidth is high, you can serve at a higher rate, but your latency still depends on your throughput being lower than your bandwidth.

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