Hm hm, to be totally honest that looks like a previous gen Xeon and it's only got 12c per CPU which means it is probably slower than your i9 (if you're using something like a 13900k).
Really depends on the type of output you're aiming for and the price of the machines but to be honest I'd probably look for something more powerful as typically, with many less powerful nodes, space / heating / electricity starts becoming a problem.
But imho it really depends on how much rendering you want to do, how fast you want it and whats the price of the thing :)
At first glance I'd say you might be better off with racking a couple of 7950x / Intel equivalents with something like a Silverstone RM41 or slimmer.
