Kazan is described as 'We seek investors, sponsors, engineers and potential customers, who are interested in the creation and use of an entirely libre low-power mobile class system-on-a-chip. This is a hybrid CPU, VPU and GPU software and hardware project for an open gpu'. There are four alternatives to Kazan for a variety of platforms, including Linux, Mac, Windows, Windows Server 2012 and XCP-ng. The best alternative is AMD MxGPU, which is both free and Open Source. Other great apps like Kazan are Virgil 3D GPU project (Free, Open Source), NVIDIA vGPU (Freemium) and Nouveau (Free, Open Source).
AMD MxGPU is the world’s first hardware-based virtualized GPU solution, is built on industry standard SR-IOV (Single-Root I/O Virtualization) technology and allows up to 16 virtualized users per physical GPU to work remotely.
Virgil is a research project to investigate the possibility of creating a virtual 3D GPU for use inside qemu virtual machines, that allows the guest operating system to use the capabilities of the host GPU to accelerate 3D rendering.
NVIDIA virtual GPU (vGPU) is the industry's most advanced technology for sharing the power of NVIDIA GPUs across virtual machines (VMs) and virtual applications. Amp up your VDI environment and deliver a superior experience to every user.