Catzilla is an OpenGL 4 and Direct3D 11 graphics benchmark for Windows and has been developped by Plastic, a Polish demogroup.
The benchmark uses a parallel graphics engine that takes advantage of multi-core CPUs.
The size of this it's a 500 MB.
This benchmark is in beta phases and working with OpenGL 4.0 and DirectX 9 or 11.
You can try it with all the Windows platform (64-bit and 32-bit) Windows XP, Vista, 7, 8 .
You can download the installer from here.