Indeed, Apple's Mac OS X QuartzGL framework (GPU accelerated drawing/rasterisation) is slower than the equivalent CPU-based Quartz framework in may cases. You'

Indeed, Apple's Mac OS X QuartzGL framework (GPU accelerated drawing/rasterisation) is slower than the equivalent CPU-based Quartz framework in may cases. You're being shafted by downvoters who don't really know what they're talking about.