Warning: Illegal string offset 'type' in [path]/includes/class_postbit.php(294) : eval()'d code on line 65 64x version of Dominions? - .com.unity Forums
The problem is 64 bit code is simply bigger than 32 bit code--fewer lines of code fit into the on-chip caches, you end up with more read cycles to memory.
How long does it take for the size of "on-chip cache" to double on average PC?