Here's what this means. Intel has about 10% advantage in process technology. Yet despite that, AMD's chip is still 10% smaller than Intel's chip. That gives AMD an effective 20% architectural advantage over Intel for similar performance. This is why Intel is now scrambling to "streamline" its architecture as soon as possible (but won't be able to do it for the next 3 years or so).
A smaller, more "efficient" chip (in terms of performance/die area) means AMD can sell it significantly cheaper and still make as much profit as Intel does on that chip. But from the looks of it, AMD is going to price its equivalent chips at around half or less of Intel's chips, which will make AMD chips a complete no-brainer.
Add to this the fact that Intel will begin to make Xeons rather than its mainstream chips on new process nodes, at first, which means a delay of 6-12 months for the mainstream chips using Intel's latest process technology, and AMD looks to have a tremendous opportunity to steal a ton of market share from Intel over the next few years.