Core i3 Vs i5 Vs i7: (Performance)

Core i3 Vs i5 Vs i7: Performance:-
In terms of performance, if you make a comparison between the three lines, the graph rises higher as you go from the i3 processors, through the i5 chips, towards the core i7 line. Core i3 is a great entry level processor that offers high definition graphics and 3D capabilities and ensures that multitasking wouldn't take a toll on computer speed. This is the default pick for home users with desktop computers.

The core i5 line is speedier and more powerful than the i3 line offering all that the i3 series offers and yet goes beyond in terms of performance. The Turbo Boost technology along with Hyper-Threading technology enables two different tasks to be handled by two different processors, which in turn, increases processing speed. They are the best processors for laptops and workstations with a high level of multitasking needs.

A core i5 vs core i7 comparison reveals that the i7 lines are simply miles ahead of the two other processor lines. The i3 vs i5 vs i7 benchmark tests reveal core i7 processors to be the clear winners. The i7 line has an inherent advantage provided by the four cores. A quad core vs dual corecomparison will reveal the edge that more cores give a processor. You can develop 3D games and images, go for video editing and get an unparalleled gaming experience. Core i7 line places phenomenal computing power at your fingertips. With the second generation core i7, built on Sandy Bridge architecture and Turbo Boost 2.0 enabled in them, these processors are miles ahead of their AMD counterparts and have maintained their title of being the best processors on the planet.

Hope this straightforward core i3 vs i5 vs i7 comparison has cleared any doubts you had about these new processor lines developed by Intel. Opt for core i3 processors if you are a home user with graphic intensive application usage and mainly multimedia use. Core i5 processors are for people who want to go for intensive gaming and run heavy programs. The top of the line core i7 processors are best for people who want to go for intensive multitasking and are designed for computers that have to function as web servers or database servers, video editing workstations or developer workstations. They are designed for business use and high end computing jobs. However, all depends on how much are you willing to pay for a new laptop or desktop. If you can afford it, why not go for a top of the line processor, from the core i7 line? The decision is yours of course. Choose any processor from any line but my personal recommendation would be to go for the mid level, core i5 series, which is cost effective, reasonably priced and offers real value for your money!

Engineering scientists at the University of Michigan have found a way to improve the performance of ferroelectric materials, which have the potential to make memory devices with more storage capacity than magnetic hard drives and faster write speed and longer lifetimes than flash memory.

In ferroelectric memory the direction of molecules' electrical polarization serves as a 0 or a 1 bit. An electric field is used to flip the polarization, which is how data is stored.

With his colleagues at U-M and collaborators from Cornell University, Penn State University, and University of Wisconsin, Madison, Xiaoqing Pan, a professor in the U-M Department of Materials Science and Engineering, has designed a material system that spontaneously forms small nano-size spirals of the electric polarization at controllable intervals, which could provide natural budding sites for the polarization switching and thus reduce the power needed to flip each bit.

"To change the state of a ferroelectric memory, you have to supply enough electric field to induce a small region to switch the polarization. With our material, such a nucleation process is not necessary," Pan said. "The nucleation sites are intrinsically there at the material interfaces".

To make this happen, the engineers layered a ferroelectric material on an insulator whose crystal lattices were closely matched. The polarization causes large electric fields at the ferroelectric surface that are responsible for the spontaneous formation of the budding sites, known as "vortex nanodomains".

The scientists also mapped the material's polarization with atomic resolution, which was a key challenge, given the small scale. They used images from a sub-angstrom resolution transmission electron microscope at Lawrence Berkeley National Laboratory. They also developed image processing software to accomplish this.

"This type of mapping has never been done," Pan said. "Using this technique, we've discovered unusual vortex nanodomains in which the electric polarization gradually rotates around the vortices".

A paper on the research, titled "Spontaneous Vortex Nanodomain Arrays at Ferroelectric Heterointerfaces" is available online at NanoLetters. 

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