Diamond Viper V770 Ultra Review
The Expendable demo supports a variety of Direct 3D features: bumpmapping, bilinear and trilinear mipmapping, texture compression, triple buffering, projected shadows and 32-bit color.  Expendable uses a 3/4 top down view similar to Diablo and is packed with loads of special effects (cement, clouds, fog, sand, water and especially explosions).
Even in 16-bit color, the high quality graphics effects in Expendable becomes apparent as smoke and translucencies are entirely visible and contain no traces of banding.
However, using these advanced features will result in a performance loss, some of which are quite severe.  With so many options in Expendable, you could easily spend a few days benchmarking in order to determine how performance is affected based on the various settings.
Similar to the Turok 2 benchmark results, the Viper V770 Ultra begins to pull away from the V550 at higher resolutions.
Note that this set of benchmarks used projected shadows, which results in approximately a 5-10% decrease in frames per second across the board.
Expendable Timedemo - 16-Bit Color
Next: 32-Bit Color Benchmarks