What are the differences between the P5200 and the P5200A?

What are the differences between the P5200 and the P5200A?

The P5200 bandwidth is 25 Mhz, Input Impedance at the Probe Tip is 4 MΩ / 7 pF.

The P5200A bandwidth is 50 Mhz, Input Impedance at the Probe Tip is 5 MΩ / 4 pF

Here is an example of a fast rise time signal being measured on both probes and as you can see the new probe reduces the ringing.