Moving to 64 Bit OS(Windows)

The Company which i am working runs all the Databases on 32bit WinOS.I have suggested that future OS should be 64 bit.But Mgmt seeks justification that Oracle will run better in 64 bit than 32 bit
Any information or Links to the sites would be helpful....
Any body came across any implicaions?
Experts please share your thoughts

Maran,
The major difference between 32bit and 64bit system is addressable memory.
32-bit computer can address 2^32 4,294,967,296 bytes of memory, or 4 gibibytes.
64-bit computer can address 2^64 bytes (or 16 exbibytes)
In Windows, that 4G is 2G reserved for system and 2G for application. Therefore, you can't configure a database with more than 2G SGA. Of course, you can play trick like AWE to address more memory however the system is running non optimal mode.

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Message was edited by: MrViklund

I have the answer and this might be useful for any one else wondering about this in the future. If it helped you or explained what you wanted to know. Replay to the post pls
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Hi
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