Frequently Asked Questions
M1R1 and 64 bits B1 Client
The benefit of 64 bit is that you can use more memory but as long as an Add-on use less than 2GB or memory 64 bit is actually slightly slower than 32 bit (not much but still).
M1R1 never uses more then 2 GB of memory so no need for a 64 bit version.
If you don't have SAP reports failing with out of memory there is no reason to run 64 bit so our general recommendation is 32 bit.