Bit Tech snapped some pictures of a sample of Intel's upcoming six-core Core i7 "Gulftown" processor. This chip is expected to be released in Q1 2010.
Here's the Gulftown CPU (left) shot next to a LGA1366 Core i7-920 (right) - both CPUs fit in the LGA1366 CPU socket and work with the X58 chipset, and so look fairly similar. As you can see, the heatspreader and upper surface of the Gulftown CPU is identical to the older Bloomfield CPU. In contrast, the undersides of the two CPUs are completely different, with the Gulftown (left) having a much more uniform pattern of components than the Bloomfield (right).