What about how Shanghai fairs against its older brother Barcelona? Well, in some cases, the gain is clearly just the increased clock speed. However, in others Shanghai achieves an increase of anywhere from 10-15% over and above the clock speed difference. It's obvious that Shanghai is what Intel would call a "Tock" of the clock for the Barcelona architecture, and it is a nice little bump for turning a few knobs and a die shrink. 2009 will be a very interesting year for AMD and Intel. Whether or not Shanghai can hold down the fort until Istanbul comes out remains to be seen.