The Shanghai review is definitely interesting, it looks to be almost clock-for-clock comparable to Penryn. Although not Nehalem, and not in all tests.
Unfortunately 2.7Ghz is still outclocked by 3.0Ghz, and no match for 3.4GHz parts.
By the time AMD releases a 3GHz HT3 part next year there will be 3.2GHz+ Nehalem's on market. And with DDR3 instead of FB-DIMMs, ready to nullify AMD's long lasting system power advantage.
Shanghai is the chip Barcelona should have been.
