according to the cinebench result i have seen on the net, your machine is up to four to five time faster than my poor P4 2.4 Ghz (the P4 is around 256 and the dual core dual opteron aroud 1100 in cinebench if i do remember) if its not accurate with maxwell ( i hope not while we wait for an increased speed) at least i can only imagine the speed issue with that kind of computer knowing that cinema 4d has been optimised for 64bits gaining 20% to 30% speed, whilst with its new incarnation ( cinema4D xl 9.5) they clame to get an 300% to 400% increased speed ( due to new AA computation amongst others) i know those specs probably wont had each others, but i cant wait to see the 9.5 64bits tested on that kinda killer computer of yours ... gimme that lotto ticket...

De Humanis fabricae...
aka vesalus on cgtalk
aka vesale on frenchcinema4d