The Interactive CPU Charts has a graph called the "Price/Performance Index." The relationship between performance and price is an important concept to convey in any CPU comparison, and I laud this site for creating the graph.
However, the graph is not as useful as it could be. By dividing the numbers, a good deal of information is lost. As long as THG is going to obtain an overall performance number and a price number for each processor, why not simply plot those numbers on a graph, rather than calculating a single index for use on another bar chart?
Here is my attempt at creating such a graph in Excel. I think it is much more interesting and useful than a simple ranking by value index, since it does not put two radically dissimilar processors next to each other who happen to have the same price per performance unit. The bar graph is interesting, but the plot can actually be used to make purchasing decisions.
However, the graph is not as useful as it could be. By dividing the numbers, a good deal of information is lost. As long as THG is going to obtain an overall performance number and a price number for each processor, why not simply plot those numbers on a graph, rather than calculating a single index for use on another bar chart?
Here is my attempt at creating such a graph in Excel. I think it is much more interesting and useful than a simple ranking by value index, since it does not put two radically dissimilar processors next to each other who happen to have the same price per performance unit. The bar graph is interesting, but the plot can actually be used to make purchasing decisions.