regaltwo opened this issue on Oct 07, 2007 · 15 posts
pjz99 posted Mon, 08 October 2007 at 4:40 AM
Important note, the above is true for a 64-bit OS running a 64-bit application. 32-bit apps running on a 64-bit OS are still limited to 2GB, or 3GB if they were compiled using a certain switch to allow it, described here:
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
I can tell you from direct experience that Windows XP 64-bit can address at least up to 20GB of memory without trouble - even though I only have 8GB on my machine, I have a large page file (8GB more by default) and the page file can be extended dynamically when needed. I once rendered a very complex hair setup in Cinema 4D 64-bit as polygons, and the process grew to 20GB, but ran smoothly otherwise (took a bit of time though!)