Recently our sharepoint Farm facing out of memory issues when downloading large file. After investigation , analyst on the memory dump we have notice is because of the workload… so our option have 2 , one is upgrade to 64bit sharepoitn farm or add on more web front end server.
suddenly read the article here about performance : http://technet.microsoft.com/en-us/library/cc298550%28office.12%29.aspx
just get to know 32bit and 64bit SharePoint server can mix up :)
Mixing 32-bit and 64-bit servers can affect load balancing. You can run an environment that has some Web servers running the 32-bit version of Office SharePoint Server 2007 and others running the 64-bit version. However, there is a risk that the 32-bit Web servers might become overloaded if the network load balancer is configured to use a less-intelligent model such as round robin. We recommend that you configure the load balancer to manage distribution based on load.
Additionally, deploying both 32-bit and 64-bit servers increases the maintenance overhead for the farm. This is because third-party applications, custom solutions, patches, and software updates for both architectures must be tracked and managed independently
the benefit i can think of is we can have less down time to conver our fram from 32 bit to 64 bit by mixing it. :D