To find out to what extent the changes implemented with Penryn translate
into dual-core performance gains, we benchmarked an E8500 engineering
sample. The E8500 is the E8000 series top model. In this capacity we
compared it with an E6850, the previous top-of-the line product.
However, the E8500 is running at 3160 MHz and the E6850 at 3000 MHz.
This means that differences between them cannot be entirely attributed
to the new features that come with the E8000 series, but at least
partially to the 160 MHz higher core frequency. In order to “isolate”
the impact of the various changes Intel has implemented with E8000 we
run all tests with a multiplier of x9 as well.