Code:
(vsFilterScript)
Output 100000 frames in 28.35 seconds (3527.91 fps)
(c_filter)
Output 100000 frames in 9.06 seconds (11036.62 fps)
(Convolution)
Output 100000 frames in 9.05 seconds (11045.38 fps)
This is not the same computer but it's quite similar in specs.