Nvidia cards support CUDA and OpenCL, AMD cards support OpenCL and Metal. The GPGPU frameworks you have access to depend on the GPU you have in your Mac. This bidirectional processing is hugely beneficial in a wide variety of tasks relating to video, still image and 3D graphics. GPGPU changes this and allows data to flow in both directions. Before GPGPU, data could be passed from the CPU to the GPU, but not back. If you want to dig deeper, GPGPU is the act of a GPU performing tasks normally handled by the CPU (processor). This could be a reduction in rendering time, better real-time previewing, or access to higher-quality effects. So now we know what GPGPU stands for, what does it actually do? GPGPU takes advantage of software frameworks such as CUDA (Nvidia), OpenCL (open source) and Metal (Apple) to accelerate certain functions in your favourite creative software with the goal of making your work life quicker and easier.
When we talk about GPU acceleration we’re talking about GPGPU, that is, general-purpose computing on graphics processing units.
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What does it all mean? Well, pull up a chair because Create Pro is here to break it all down. You’ve heard of it, but you’ve also heard lots of confusing terms bandied around, GPGPU, CUDA, real-time rendering, OpenCL, Mercury Graphics Engine, Metal.
GPU hardware acceleration is a thing, and it has been a thing for quite some time now. So you’re a Mac user and a creative, plus it’s 2020. The installation steps differ for each SDK and the OS you are running. For AMD GPUs and CPUs download the AMD APP SDK For NVIDIA GPUs download the CUDA Toolkit For Intel CPUs/GPUs download the Intel OpenCL SDK.
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Note, if you are using Apple Mac OS X, you need to use Apple’s OpenCL implementation, which should already be installed on your system.
Games and graphics-intensive apps that use OpenGL should now. Apps built using OpenGL and OpenCL will continue to run in macOS 10.14, but these legacy technologies are deprecated in macOS 10.14.
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But the installer of the new driver did not remove the old OpenCL CPU runtime when you upgrade the newer driver, so you may have two OpenCL. The OpenCL CPU runtime is removed from the OpenCL driver for Windows starting in the 2020 February release version ''. These test have been done on my Mac Book Pro. All that said it is a curious result that CPU outperforms GPU (OpenCL). I understand that the Nvidia GT650M is most likely optimised for CUDA over OpenCL. Again rather shockingly the OpenCL performance is extremely poor.
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