POV-Ray 3.70 beta 21:

Another new addition to our CPU benchmarking suite is POV-Ray, or Persistence of Vision Raytracer. It's a great little open source tool that can be used for creating 3D graphics art work with raytracing. Version 3.70 is the first version to include proper multi-threaded support, but it is still in beta at the moment meaning performance isn't quite as high as it will be when it comes to final release day. We used the built in benchmarking model on beta 21 for our testing purposes here.

Single Threaded:

Multi Threaded:

The Athlon 64 X2 6000+ chalked up a healthy win in POV-Ray with fairly consistent increases over the competition. There were some very slight performance advantages for the E6750 over the E6700, but we're talking about less than half a percent. Although the bus speed increase doesn't have much of an effect on Intel's dual-core processors, it may have an effect on its quad-core processors, as data is passed across the front side bus there.