OpenCV vs. LibJacket: GPU Sobel Filtering

Update: LibJacket has been renamed to  ArrayFire. In response to a comment on a previous post about integrating LibJacket into an OpenCV project, below is just a simple FYI performance comparison of OpenCV's GPU Sobel filter versus LibJacket's conv2 convolution filter (with a sobel kernel)... This is an evolutionary post, so be sure to scroll all the way down to see more comparisons... Update (10/24/2011): Round 2     Test system: [via /proc/cpuinfo]: Intel(R) Core(TM) i7 CPU Read more [...]