It is for some reason a common view, that when using replication you also have to pay in increased wire length. It looks reasonable isn’t it? After all, you now have more blocks to wire into and out of and therefore total wire length should increase, right? Well, not really…
In some cases this might be true, but in most cases wire length should decrease. Wiring in a chip obeys taxicab geometry laws, so it is a bit less intuitive than usual.
Here is a simple example showing how wire length can decrease after replication.
