Agilent Technologies InfiniiVision 3000 X- Series Advanced Training Manual page 123

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Oscilloscope Bandwidth Tutorial
Figure 88 100 MHz digital clock signal captured on a 500 MHz bandwidth scope
When we use a 1 GHz bandwidth scope to capture this 100 MHz digital
clock, the result is that we now have a much more accurate picture of this
signal, as shown in Figure 89. We can measure faster rise and fall times,
we observe less overshoot, and we can even observe subtle reflections that
the lower bandwidth scope masked.
3000 X-Series Oscilloscopes Advanced Training Guide 123