512bit.net is a site dedicated to retro graphics cards from 1995-2005. From the golden age of 3D chip development.

Photos of Graphics cards are in high resolution, gpu and memory clocks are read if possible.

Cards were tested in 7 benchmarks.
In each test where compared by the reference card Matrox Parhelia OEM AGP 4x. The sum of the results in those 7 benchmarks gives Benchmark Points (BP). In this way, cards of different generations can be compared.

Optimized drivers can affect performance by up to 20%, that's why several of them were tested and the best one driver was selected. The power of the processor can affect it just as much. They were tested on the same configuration so that the results are correct comparative.