Fixed Function Benchmarks, sometimes called Synthetics benchmarks, are broken into two categories, Synthetic and Semi Synthetic.
Synthetic: A Synthetic benchmark is created to test a specific feature and is developed using patterns and created files. These tests usually stress one section or module of the hardware to determine theoretical performance.
Semi-Synthetic: A Semi-Synthetic benchmark is an application that has been created and used in trace form or specific patterns. These tests focus on an API, create bottlenecks on specific architectures then move to the next (CPU, GPU, Shaders, Tessellation, etc.). They can stress multiple modules at the same time to determine real game performance. Semi-Synthetic benchmarks require non specific drivers to verify (anti-cheat) and gather their scores based on traditional game engines.
HiTech Legion evaluates video cards using three, which are:
3DMark Fire Storm (Semi-Synthetic): Extreme, 2560x1600