However, while on the 7xx models these cores are all “real,” on the 6xx models two of these cores are “real” and the other two are simulated. This means that the operating system will recognize all these CPUs as having four cores. Models with integrated video support two video monitors.The 7xx models are quad-core CPUs without the Hyper-Threading technology, while the 6xx models are dual-core CPUs using the Hyper-Threading technology. All 6xx models have an integrated DirectX 10 video controller with 12 execution units running at 733 MHz or 900 MHz, using an engine that is known as “Intel HD Graphics,” a feature not present on the 7xx models.

The models listed below support two video monitors.All Core i5 mobile CPUs are dual-core processors supporting Hyper-Threading (HT) technology, which simulates two logical processing cores in each physical core. (“UM” models support only DDR3-800 memories.) They have an integrated PCI Express 2.0 controller supporting one x16 connection and an integrated DirectX 10 video controller running at 500 MHz with a 766 MHz “boost” clock (166 MHz with a 500 MHz “boost” clock in “UM” models). Communication with the motherboard chipset is achieved through a DMI bus (1 GB/s per direction, which is listed as 2.5 GT/s by Intel). They can use two different pinouts, BGA1288 or socket G1, and have an integrated dual-channel DDR3 memory controller supporting 800 MHz and 1,066 MHz DDR3 memories. The two are not comparable.The first-generation Core i5 targeted to laptops, named 4xx and 5xx, uses the Nehalem microarchitecture. On some other models, the manufacturer lists Tjunction, which is the maximum internal temperature of the CPU.

The two are not comparable.In the table below, we listed all Core i5-2xxx desktop CPU models, which are based on the Sandy Bridge microarchitecture. On some other models, the manufacturer lists Tcase, which is the maximum external temperature of the CPU. SSpec* The temperatures listed above are Tjunction, which is the maximum internal temperature of the CPU.

Intel I5 Processor Generations