"Memory companies are already jumping on the Nehalem bandwagon, and are preparing to launch kits at the release of the new processor. It will be very common to see both 3GB and 6GB kits, although I'm sure there will be 12GB kits as well. The 3GB kits would better suit those with 32-bit operating systems, while anything higher would only function with a 64-bit one. In many regards, it only makes sense to go with 64-bit going forward. Even notebook vendors are beginning to offer Vista 64-bit by default, so it's catching on quicker than ever.
What else can we say about Nehalem? Sadly, we can't give specific performance comparison results, but it's definitely not something that will truly disappoint. Like most new processor launches, it will improve performance in most areas, and excel in a few others... just like how Penryn's added SSE4.1 instruction set helped it dominate video-related benchmarks."