Blender v2.41 and YafRay v0.0.8 for Windows x64

From the thread:

The applications were built with SSE3 optimizations but is also useable on SSE2 CPUs. Please post in this thread if you have any problems. I have made some code tweaks to utilise 64-bit optimizations. You should be able to see a 40%-60% speed increase in most cases. Since this is a native x64 application, it takes advantage of 64-bit OpenGL drivers. We have thoroughly tested the above builds and it is stable as the official 32-bit releases.

Before using these builds, please be advised that issues concerning the compatability between the 32-bit and 64-bit Blender files may exist. If any issues are found, please post them on the Blender thread.

Advertisement