Just days after Intel announcing low power processor “atom” and AMD releasing “spider” and announcing upcoming laptop processor “Puma“, Intel is announcing their roadmap for future processors.

Dunnigton:

• 6 core processor
• 45nm process
• Server processor (XEON range)
• Advanced virtualization and live migration features

Tukwila:

• Next generation Itanium processors
• 4 core processor
• huge 30MB cache
• Quickpath interconnect (like AMD hypertransport)
• mainframe class RAS features
• expected to be twice as powerful as current generation Itanium

Nehalem:

• Next generation microarchitecture
• Scalable from 2 to 8 cores
• each core can process upto 2 thread. leading to 16 thread capability
• 4 times more memory bandwidth (thanks to Quickpath)
• upto 8MB l3 cache
• Integrated memory controller (another feature pioneered by AMD)
• Integrated graphics (competition to AMD fusion?)
• supports DDR3 800,1066,1333.
• 256KB l2 cache (so small?)
• 2 level TLB (Translation lookaside buffer)

Larrabee:

• Visual computing
• Advanced graphics
• Physics engine
• wide SIMD vector processing unit

with the above Intel also mentioned about Intel AVX (Advanced Vector Extension)

more here and here