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A comment on PowerVR Wizard GPU does real-time ray tracing at 10x lower power than Nvidia GTX. Parent comment

Re:PowerVR Wizard GPU does real-time ray tracing at 10x lowe... by namuol on Thursday January 07, 2016 @03:54PM (#10860663)
Global Illumination, Path Tracing, Photon Mapping and Ray Tracing all belong to a category of algorithms that are better suited for multi-core general processors -- not the SIMD hardware of today's GPUs.
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Re:PowerVR Wizard GPU does real-time ray tracing at 10x lowe... by dogma1138 on Thursday January 07, 2016 @04:10PM (#10860784)
GPU's haven't stuck to SIMD parallelism for quite a few years now. NVIDIA is not there yet SMT/DPT isn't true parallelism but it's good enough even for path tracing. AMD GPU's are pretty much truly parallel with every execution unit capable of executing any instruction asynchronously.
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