Brand new back-end using PRF-based renaming (from a RRF-based).Improved macro-op fusion (covers almost all jump with most arithmetic now). Increased to 20 entries/thread (from 18 entries, shared).BTB is now a single-level design (from two-level).Sandy Bridge also provides considerable higher integration versus its predecessors resulting a full system on a chip design. The back-end is an entirely new PRF-based renaming architecture with a considerably large parallelism window. The front-end has been entirely redesigned to incorporate a new decoded pipeline using a new µOP cache. Sandy Bridge features an entirely new architecture with a brand new core design which is both more highly performing and power efficient. Sandy Bridge uses the same 32 nm process used for the Westmere microarchitecture for all mainstream consumer parts. Sandy Bridge Wafer Further information: Westmere § Process Technology 10.1.3.3.2 Scheduler Ports & Execution Units.10.1.2.1.2 Instruction Queue & MOP-Fusion.
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