The leaked slide deck also includes more information about Intel's Penryn successor, codenamed Nehalem. Nehalem is everything Penryn is -- 45nm, SSE4, quad-core -- and then some. For starters, Intel will abandon the front-side bus model in favor of QuickPath Interconnect; a serial bus similar to HyperTransport.
Perhaps the most ambitious aspect of Nehalem? For the first time in 18 years Intel will pair its processors cores up with on-die memory controllers. AMD made the switch to on-die memory controllers in 2003. For the next three years its processors were almost unmatched by Intel's offerings. The on-die memory controller can't come a moment too soon. Intel will also roll out tri-channel DDR3 with the Nehalem, and all that extra bandwidth can only be put to use if there are no bottlenecks.