ABSTRACT: three models are quad core processors.
Intel Core is a brand name that Intel uses for various mid-ranges to high-end consumer and business microprocessors. In general, processors sold as Core are more powerful variants of the same processors marketed as entry-level Celeron and Pentium. Similarly, identical or more capable versions of Core processors are also sold as Xeon processors for the server and workstation market.
As of 2013[update] the current lineup of Core processors includes the latest Intel Core i7, Intel Core i5, and Intel Core i3, and the older Intel Core 2 Solo, Intel Core 2 Duo, Intel Core 2 Quad, and Intel Core 2 Extreme line.
"Core i7" is a successor to the Intel Core 2 brand. Intel representatives stated that the moniker Core i7 is meant to help consumers decide which processor to purchase as the newer Nehalem-based products are released in the future. Intel core i7 is a family of three Intel desktop processor; the first processor released using the Intel Nehalem micro architecture and the successor to the Intel Core 2 family. All three models are quad core processors.
A quad core processor consists of four cores. Quad core technology is a type of technology that includes two separate dual-core dies, where dual-core means a CPU that includes two complete execution cores per physical processor, installed together in one CPU package. In this setup cores 1 and 2 would share a memory cache, and core 3 and 4 another cache. Communication between core 1 and 2 and core 3 and 4 using QPI (Quick Path Interconnect)
The need for core i7 processors requires a comparison with their immediate predecessors. The comparison can be summarized as follows. The Core i7 is a completely new architecture which is much faster and more efficient than the Core 2 Duo. Currently only the Core i7 920, 945 and 965 XE versions are available. Of that the Core i7 920 is available at just $284 which makes it a great buy. It offers better