I'm just going to add our experience to the above. (I don't know as much as Bert or Sandeep, but I know what I know.)

About a year ago, running v5 (??5.0.29??) on a Pentium probably dual core about 3.2 G processor, 4 GB memory, XP Pro, we were noticing significant speed issues, which would often be worse in the afternoon. Both wireless and hard wired computers affected, we even ran AC at the main computer and it would be slow. System would occasionally crash.

Switched to an i7 processor, 12 GB memory, much much much faster. No crashes.

Our experience was that AC v5 ran much more quickly with faster processors. v6 seems to have even more of a speed difference.

Since v6 we have gotten some new laptops. i5 laptops run AC MUCH more quickly than older Pentium single core with 2 GB memory.

Gene

Gene Nallin MD solo family practice with one PA Cumberland, Md