This first overview simply totals all benchmark results without applying any weighting. All values are measured in FPS, so this does not include readings from the synthetic 3DMark06 benchmark.
The second overview adjusts the data so that performance can be compared across multiple games and platforms (in mathematical terms, this process is called normalization), by transforming the data into percentage values. This ensures that no single benchmark can swamp the cumulative results because of higher frame rates or higher resolutions. All benchmarks count the same, as communicating results in percentage terms makes it easier to compare various test candidates to one another.
Please note: a reference value of 100% came from the smallest test value on each benchmark. Because the weakest card isn’t always slowest in every test, some values greater than 100% will occasionally appear.