GPU Caps Viewer 1.64.4.0

GPU Caps Viewer: Comprehensive GPU diagnostics, API reporting and stress testing

GPU Caps Viewer from oZone3D.Net is a free, Windows-only utility that inspects graphics hardware and drivers, reports API capabilities and runs lightweight real-time demos and stress tests. The tool enumerates OpenGL, Vulkan, OpenCL and CUDA support, exposes driver and hardware limits, and produces exportable system reports. A portable ZIP option and traditional installer are available for quick deployment on multiple machines.

Core functionality

• API and extension discovery: Details supported OpenGL and Vulkan versions and extensions, and lists OpenCL and CUDA support where present. Extension entries link to specifications, aiding developers who need to verify available features.
• Hardware and driver reporting: Presents GPU model, VRAM, vendor and device IDs, driver version and platform-level information such as CPU and system memory. Also reports hardware limits like maximum texture size and number of texture units.
• Real-time demos and stress tests: Includes a set of OpenGL/Vulkan demos demonstrating features such as HDR, tessellation, instancing and particle systems, plus GPU Burner-style stress tests to exercise thermal and stability limits.
• Monitoring and validation: Tracks GPU temperature, clock speeds and, where supported, utilization and fan speed. Generates text or XML reports and offers a validated system snapshot upload for sharing or support purposes.

Practical applications

• Graphics development: Rapidly confirm API support and hardware limits without building custom test programs, helpful when targeting specific extensions or debugging rendering issues.
• System validation and troubleshooting: Produce exportable reports for support workflows or to compare hardware capability changes across driver updates.
• Overclocking and thermal testing: Use the stress demos alongside monitoring readouts to reveal cooling or stability issues after tuning.

Maintenance and compatibility

GPU Caps Viewer has received incremental updates to expand API coverage and accommodate newer GPUs and drivers. Releases have refreshed demo content and extended reporting for Vulkan and OpenCL. The application provides both portable (ZIP) and installer distributions and maintains compatibility with a broad range of Windows configurations, including legacy 32-bit builds alongside modern 64-bit support.

Strengths and limitations

• Strengths: Extensive API and extension listing, useful demonstration scenes, multiple stress-test options, exportable reports and a portable distribution make the tool practical for developers, system builders and enthusiasts.
• Limitations: Restricted to the Windows platform; not a comprehensive long-term logging solution compared with dedicated monitoring suites.

Usage tips

• Run stress tests while monitoring temperatures and clocks to validate cooling and stability after hardware tuning.
• Export XML reports before and after driver updates to document capability or behavior changes.
• Follow extension links from reported entries to consult official specifications when troubleshooting shaders or missing features.