CUDA-Z is GPU tool like GPU-Z or GPU Caps Viewer that gives you information about your GPU(s). And as its name says it, CUDA-Z is focused on NVIDIA CUDA GPU computing API. NVIDIA CUDA being available under Windows, Linux and Mac OS X, CUDA-Z is also available under the three operating systems thanks to Qt.
You can download CUDA-Z from these pages:
Source: Geeks3D forums