Re: 64-bit DirectX game?
Company of Heroes isn't a 64-bit native game, but it does take advantage of
the "Large Address Aware" feature of 32-bit applications. When run on x64
versions of Windows, this doubles the possible memory addressing from 2 GB
to 4 GB allowing them to provide higher resolution textures and better
anti-aliasing using more than 2 GB of physical memory.
While it is technically possible to use "Large Address Aware" with special
boot options on Windows 32-bit OS, it's not always stable and really only
gives you something between 2 GB and 3 GB of memory adressing while 64-bit
OS can get up to 4 GB for such 32-bit applications without any strange
To sum up: Even 32-bit games can take advantage of 64-bit OSes for more
memory addressing than it could on a 32-bit OS. Expect this to become
popular faster than making two versions of the same game for most titles.
SDE, XNA Developer Connection
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