CPU Cache is an area of fast memory located on the processor. Intel Smart Cache refers to the architecture that allows all cores to dynamically share access to the last level cache.
Instruction Set Extensions
Instruction Set Extensions are additional instructions which can increase performance when the same operations are performed on multiple data objects. These can include SSE (Streaming SIMD Extensions) and AVX (Advanced Vector Extensions).
Processor Base Frequency
Processor Base Frequency describes the rate at which the processor's transistors open and close. The processor base frequency is the operating point where TDP is defined. Frequency is measured in gigahertz (GHz), or billion cycles per second.
Max Turbo Frequency
Max turbo frequency is the maximum single core frequency at which the processor is capable of operating using Intel Turbo Boost Technology. Frequency is measured in gigahertz (GHz), or billion cycles per second.