Iterate function viewer for Windows and Linux. It has built in 14 different iterate {Mandelbrot) functions. Many possibilities for changing parameters, saving as bitmap or small file. windows-32. Linux 32 - 64bit. Low level written in assembler.
Openmark will be a Open Source benchmark that will have 32/64 bit options for video rendering tests on X11 as well as HD speed, FSB, etc benchmarks. Also many tools like: temp monitor, speed control, etc.