I found very interesting the article that Carlos publishes in I have a Mac trying to compare the performance of his MacBook Pro (he has a multi-touch like mine, from the just previous generation) with one of the new batch, the unibody with screen glossy . This is based on a number, which provides a benchmark made with the Primate Labs Geekbench tool. The benchmark itself revolves around being able to measure the performance of a system. Or, more simply, try evaluating how well your Mac runs on Leopard.
And the results are all gathered in an online database that can be consulted , so we can compare several models of Macs from different periods and not only that but compare laptops vs. desktops and ultimately be as creative as we want. Besides, there is a chart where they are all ordered, updated to June last year (the most recent Macs are not included).
Should we trust this comparison? Well, in the end it’s trying to put a mark, a number to a really complex set of operations so in my opinion there is a certain degree of tolerance, I do think as the author of the original post that roughly similar numbers correspond to similar performances. In this way we can know if this Mac we are following on eBay is a bargain or rather a scam and we can know if it behaves on par with the current numbers or on the contrary it is light years away from the current machines and it will serve us little or nothing.