கணனித்தகவல்கள்

What's the difference between Core i3, i5 and i7 processors?

2018-12-17 20:59:55, comments: 0

Confused about which Intel processor you need? We explore the differences between the Core i3, i5 and i7 range

Although Intel's naming convention is generally a lot better and less confusing than it used to be, it can be difficult to work out exactly which processor suits your needs. If you're struggling to work out the differences between the Core i3, i5 and i7, don't worry, as we'll explain everything for you.

Architecture

First, it's important to explain about architecture and codenames. Every year, Intel releases a newer, faster range of processors. We're currently starting to see Devil's Canyon chips, a refresh of last year's Haswell. Before that we had Ivy Bridge and Sandy Bridge. Generally speaking a Core i3, i5 or i7 that has a newer architecture is faster than the older-architecture processor that it replaces. You can tell the architecture by the model number, Devil's Canyon and Haswell start with 4; Ivy Bridge with a 3; and Sandy Bridge with a 2.

The most important thing about different architectures is making sure that you have a motherboard that supports the type of processor you're interested in. Processors, regardless of whether they're a Core i3, i5 and i7, based on the same architecture are fundamentally the same inside. The differences in performance come from which features are enabled or disabled, the clock speed and how many cores each one has.

Model Core i3 Core i5 Core i7
Number of cores 2 4 4
Hyper-threading Yes No Yes
Turbo boost No Yes Yes
K model No Yes Yes

The feature table above shows you how the most popular processors line-up in terms of features. The differences in Core i3, i5 and i7 are the same for Sandy Bridge Ivy Bridge, Haswell and Devil's Canyon (a Haswell refresh). Note that there are exceptions (see below), but you're mostly unlikely to encounter these odd models when buying a new CPU. Also, mobile processors are completely different again, so we're focussing on desktop models here only. What's important is what these different features mean, which we'll explain.

Cores

A core can be thought of as in individual processor. A dual-core processor, therefore has two internal processors, a quad-core model has four. More cores are useful for multi-tasking; for example, you can run two applications at the same time, each one having access to its own dedicated processor.

« back

Add a new comment

Search

Categories

No categories

Manifo.com - free website building