Here is a comparison of the previous generation: https://www.xcelerit.com/computing-benchmarks/libor/intel-xeon-phi-vs-nvidia-tesla-gpu/ https://www.xcelerit.co

Here is a comparison of the previous generation: https://www.xcelerit.com/computing-benchmarks/libor/intel-xeon-phi-vs-nvidia-tesla-gpu/ https://www.xcelerit.com/computing-benchmarks/libor/intel-xe... They hold their own against GPGPU, but are probably the inferior choice if your code already runs on a GPU (OpenCL/CUDA). The real advantage of the Phi is of course combining this nearly-as-good-as-GPGPU parallelism with the x86_64 toolchain and infrastructure. x86 supports more languages with more libraries, and is easier to develop for.