Basically - yes.ORIGINAL: Speedy
Not being a tank expert but aren't the M4A3 and Pz IVH/J seen as being fairly even in performance? As in penetration? Armour? etc.
The PZIV F2 through J had a more powerful 75 than the standard 75mm gunned Sherman - but this was negated by the fact that both antagonists could shoot holes in each other at the same ranges.
The 76 gunned Sherman’s had a more powerful gun than their German counterpart - but the same equation still held true that both tanks could kill each other, but the late Sherman’s with the 76 were more capable tanks overall.