Here are the stats on the Eheim
Tanks up to 92 gal (350 L) Pump output 251 gph (950 lph) filter circulation 172 gph (650
Not sure what that pump is, but not sure it would be a good comparison, just becuase there is a mass flow, it doesn't always mean the water is being filtered well. Eheims have always been on the low end of output, but are amongst the best if not the best filters on the market. The 2026 would serve a heavily stocked 55 very well.....
My guess would be that the Mag 7 pump would circulate more water....