After all, if you are considering upgrading your old computer to one of the new MacBook Pros you probably do not want to do it from a Core Duo model that is approximately one year old. Instead, surely as a laptop user you are considering doing it from a PowerBook or even an iBook. Naturally in this case you will be interested in the performance improvement that you will get with one of the new MacBook Pro Core 2 Duo over the older models, especially when it comes to applications that do not yet work natively on processor-based Macs. Intel. Are there any performance impacts caused by the Rosetta emulation or is the performance increase of the Core 2 Duo sufficient to offset it?
In our initial tests, we found that running Rosetta applications on Mac OS X versions prior to 10.4.8 may experience some performance impact compared to running natively on PowerPC-based notebooks, especially MacBooks. since its graphics system borrows part of the main memory of the system and therefore does not offer a dedicated acceleration. Of course, these performance differences become more apparent when it comes to comparing the performance of Core 2 Duo laptops to higher-end systems based on PowerPC G5 processors.
However, with the latest batch of laptops based on Core 2 Duo processors we have verified that the performance in applications such as Adobe Photoshop or Elements (for the MacBook Pro and MacBook, respectively) offers a more agile response than we would obtain when running them on the old PowerBook or iBook (especially in this second case).