The 2nd generation Intel Core i5 Processors are based on the Sandy Bridge architecture released by Intel in early 2011. Unlike the previous Nehalem architecture, which had an array of Core i5 processors with different code names making it confusing for the buyers to choose; the 2nd generation core i5 processors uses a four character model number with Sandy Bridge as prefix.
Most of the Core i5 processors on Sandy Bridge architecture are quad-core except the new dual-core core i5-2390T. The suffix T at the end of model name means ultra-low power while the other suffixes K and R mean unlocked multiplier and low-power respectively. The cache memory for dual-core processors is 3 MB whereas for the quad-core processors it is 8 MB, which means that it does not support serious multitasking.
Though all the core i5 processor models are Turbo Boost technology enabled in the range of 300-400 MHz however, Intel has dropped the hyper-threading from this product line. Currently all the models available have only 4 threads. The Turbo Boost technology gives a secondary boost to processing speed whenever required by the operating system whereas Hyper threading enables better performance while executing programs like video editing that requires multiple threading as each thread acts like double.
With the launch of Sandy Bridge architecture Intel brought a single type of LGA 1155 socket for all core i5 processors. The core i5 processors use the DDR3-1066/1333 memory type with processor graphics being either Intel HD 2000 or Intel HD 3000. Clock speed of the core i5 processors for desktops ranges from minimum 2.4 GHz to 3.3 GHz maximum.
Among the more advanced technologies brought on board include Intel Anti-Theft technology, Intel My Wi-Fi technology, Intel Virtualization technology and Thermal Monitoring technology among various models of core i5 processors. These 2nd generation core i5 processors are designed to enhance visual experience with their Intel Flexible Display Interface, Intel Clear Video HD technology and Intel Tru 3D technology. These new graphical technologies make videos and pictures rich in colour with sharp images and life like feeling.
It is very obvious that Intel Core i5 Processors are mid-range performance processors aimed at people looking for who are not regular with heavy multitasking or multi-threading programs. For most general users and gamers, included, the 2nd generation Sandy Bridge core i5 processors are a very good option within the affordable price range.