glmark2 vs SPECviewperf

glmark2 is a free graphics benchmark for OpenGL 2.0 and OpenGL ES 2.0. Its default suite runs scenes covering workloads such as building, textures, shading, bump, buffers, terrain, and shadows, then prints a glmark2 score. Users can specify custom benchmarks through command-line options or benchmark files. Results can be exported to XML or CSV, and available result details include CPU time and shader compilation time. The project documents Linux builds for DRM, Wayland, and X11, including desktop GL and GLESv2 variants, and provides instructions for building and installing an Android APK. Windows support is recorded through WGL and ANGLE-EGL. Building uses Meson and Ninja and requires Meson 0.47 or newer, libpng 1.6, window-system development files, and applicable GL or GLES libraries. On Android, arguments can come through an intent extra or an arguments file, with intent arguments taking precedence when supplied. The Android version ignores several X11 options, including validation, off-screen, fullscreen, and scene-list options. The project is licensed under GPLv3 and is provided without warranty.

SPECviewperf has no write-up on Specifiction yet; its figures are above.