Based on the Nehalem processors with additional L3 cache from 8MB to 12MB and better power management options such as new power states for the uncore part of the CPU that houses the QPI and memory controller and also support for new instructions to speed up AES encryption this processor is designed for both the enthusiast as well as the server market.
Still featuring the excellent performence of Nehalem but on 32nm technology a 1.17 billion transistor count the die size has actually shrunk even though we now have 50% more cores and cache on the die. From the original 296mm2 to 240mm2 the scaling from 45nm to 32nm has gone very well for Intel.
What does this mean for gamers and professionals? Simple really, more speed, better power efficiency and a drop in replacement for those with Socket 1366 systems.