Here is the Guide That will help you to select the Best processor according to Your Needs
We often get confused while purchasing a laptop which processor will be best and which generation of laptop should we buy.Here I try to explain a little bit about the processor and generation and what configuration will be best for home, office and gaming.
There are two Major companies who manufacture processor for our computer and laptops Intel and AMD and nearly 80% of laptops and PC come with Intel processor and there are many processors which Intel manufacture and modified every year.
In modern term, CPU is also known as Processor. initially processor act as a brain of the computer.
What is a core?
A core is usually the basic computation unit of the CPU – it can run a single program context (or multiple ones if it supports hardware threads such as hyperthreading on Intel CPUs), maintaining the correct program state, registers, and correct execution order, and performing the operations through.
For optimization purposes, a core can also hold on-core caches with copies of frequently used memory chunks.
A CPU may have one or more cores to perform tasks at a given time. These tasks are usually software processes and threads that the OS schedules.
Note that the OS may have many threads to run, but the CPU can only run X such tasks at a given time, where X = number cores * a number of hardware threads per core.
The rest would have to wait for the OS to schedule them whether by preempting currently running tasks or any other means.
In addition to the one or many cores, the CPU will include some interconnect that connects the cores to the outside world, and usually also a large “last-level” shared cache. There are multiple other key elements required to make a CPU work, but their exact locations may differ according to design.
You’ll need a memory controller to talk to the memory, I/O controllers (display, PCIe, USB, etc..). In the past, these elements were outside the CPU, in the complementary “chipset”, but the most modern design has integrated them into the CPU.
In addition, the CPU may have an integrated GPU, and pretty much everything else the designer wanted to keep close to performance, power and manufacturing considerations. CPU design is mostly trending into what’s called system on chip (SoC).
This is a “classic” design, used by most modern general-purpose devices (client PC, servers, and also tablet and smartphones). You can find more elaborate designs, usually in the academy, where the computations are not done in basic “core-like” units.
What is the thread?
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system.
The implementation of threads and processes differs between operating systems, but in most cases, a thread is a component of a process.
Multiple threads can exist within one process, executing concurrently and sharing resources such as memory, while different processes do not share these resources.
In particular, the threads of a process share its executable code and the values of its variables at any given time.
Best Intel processor: Core i3, i5 and i7 explained.
Intel’s Core chips are a super-strong brand found on the majority of laptops, but how do you know what you’re actually buying? We bust Intel’s jargon.
Around 80% of new PCs and over 90% of laptops have Intel processors. This means that if you’re in the market for a new computer, you’ll most likely be considering an Intel-powered model.
Finding the right chip is hard.
Intel’s processor ecosystem is strewn with confusing model numbers that actually tell you a lot about the processor you’re about to buy, albeit only if you know what you’re actually looking for.
Intel’s branding doesn’t make it particularly easy for you to choose: it’s not at all obvious what the difference between a Core i3, Core i5 or Core i7 processor is, apart from an ever-increasing amount of cash removed from your wallet.
I Will explain all in this article. Read on to find out everything you need to know…
Desktop Intel core processor
Intel’s current Core-branded processors, which are found in the majority of desktops and laptops, are split into three ranges, with several models in each range.
These ranges are called Core i3 (or Core m3), Core i5 and Core i7, but the differences between the ranges aren’t the same on laptop chips as on a desktop.
We’ll explain the difference between laptop chips at the bottom of this article.
The desktop chips follow a more logical pattern, so we’ll cover them first. Many of the concepts and technologies we discuss, such as a number of cores, cache, Turbo Boost and Hyper-Threading, are common across both desktop and laptop.
For this reason, even if you’re only considering buying a laptop, you should still read the desktop section before moving onto the laptop part of the article.
In many ways, the desktop processors in the Core i3, i5 and i7 ranges are very similar to each other. All are based on the same key processor architecture (codenamed Kaby Lake for the latest generation), have the same instruction sets (the code that actually tells the processor what to do), fit in the same socket and have broadly similar graphics chipsets.
Despite their underlying similarities, there are some key differences that can drastically affect each model’s performance. First, have a look at the table below to see how the ranges compare. We’ll explain what the terms mean later in the article.
Number of cores
The first thing you’ll notice from the table is that Core i5 and i7 processors have four cores, while Core i3 models only have two. Out of all the differences between the Intel processor ranges, this is the one that will affect performance the most.
Each core is effectively its own processor – your PC would still work (slowly) with just one core enabled. Having multiple cores means that the computer can work on more than one task at a time more efficiently.
which will help keep your system running snappily even if you have tasks, such as an antivirus scan or video render, running in the background.
Having several cores can also drastically increase the speed at which certain programs run. This doesn’t apply to all applications, as creating software that takes advantage of multiple cores is difficult. While two cores are now the accepted minimum in a processor.
If you generally only tend to have a handful of tabs open in a web browser and your most demanding application is a word processor, you won’t see a huge benefit from a quad-core chip. However, modern games benefit from quad-core chips as does video encoding.
Finally, we come to processor cache. This is a small section of memory built into the processor that stores copies of data present in the main system RAM. It takes much less time for a processor to grab data from this cache, so the time it takes to process that data is reduced.
A larger cache means the chip will need to grab data from the PC’s slower RAM less frequently, leading to faster performance.
Only one Core i3 chip (the low-end Core i3-7100) has 3MB cache, while all the rest have 4MB. All Core i5 processors have 6MB and Core i7s get 8MB. Ultra-high-end Core i7 Extreme processors get even more.
As the Core i7 chips also have Hyper-Threading, it’s hard to test how much of their extra performance over i5 models is down to the extra cache. The cache shouldn’t be as much of a factor in your buying decision as the other aspects we have discussed.
But be assured that even the lowest Core i3 models have the same amount of cache per core as the Core i5s, so none of the processor ranges is crippled in this regard.
The next item that may catch your eye is that the slowest Core i3 chips run at a faster speed than the base Core i5 and Core i7 models. This illustrates the perils of making a buying decision based purely on clock speed. Enter Turbo Boost.
what is clock speed?
The GHz figure you’ll see represents the number of clock cycles (calculations) a processor can manage in a second. Put very simply, a bigger number means a faster processor.
For example, 3.6GHz means 3,600,000,000 clock cycles. This figure should never be used to compare processors from different families, generations or manufacturers, however.
Bigger is not better when comparing AMD and Intel, or 2nd-gen to 7th-gen Intel processors: different processor families have different levels of efficiency, so how much they get done with each clock cycle is more important than the GHz number itself.
Turbo Boost dynamically increases the clock speed of Core i5 and i7 processors when more power is required. This means that the chip can draw less power, produce less heat (most of the time) and only boost when it needs to.
Turbo Boost means that the clock frequency figures in the table above are misleading. For example, although a Core i3-7300 runs at 4GHz compared to 3.5GHz for the Core i5-7600, the i5 chip can boost up to 4.1GHz when required, so will end up being quicker.
The more a processor boosts its clock speed, the more heat it will produce.
So the processors can only Turbo Boost for a limited time while they remain within a certain temperature range.
During long periods of heavy processor activity using all a processor’s cores, such as video encoding, a chip may not Turbo Boost much at all as it might be too hot to do so safely.
Turbo Boost is a significant part of the reason Core i5 and Core i7 processors outperform Core i3 models in single-core-optimised tasks, even though they have lower base clock speeds.
Do We need Hyper-threading?
Next up is possibly the most confusing part of the spec sheet: Hyper-Threading. Confusing to explain a concept, but also confusing as it’s available on the top-end Core i7 and low-end Core i3 chips, but not the mid-range Core i5. Normally you’d expect to see more features added as you go up the processor range, but not here.
Hyper-Threading essentially tricks Windows into thinking that each physical processor core is, in fact, two virtual (logical) cores.
The operating system can then share processing tasks between these virtual cores in order to help certain applications run more quickly and to maintain system performance when more than one application is running at once.
A two-core Core i3 processor will appear as four virtual cores in Windows’ Task Manager, and a four-core i7 chip will appear as eight cores.
On both our quad-core and a dual-core test system, Hyper-Threading increased the GeekBench 3 multi-core test score by 17%. Not double the speed, but a useful boost nonetheless. This performance increase will vary by program; some software is much better at handling lots of threads.
It’s odd that the Core i5 chip misses out on this useful speed-boosting technology, especially as it’s present on the cheaper Core i3 models, so wouldn’t appear to add anything to the cost of manufacturing a processor.
Its possible Hyper-Threading is simply disabled on these models in order to give you a reason to buy a chip from the more expensive Core i7 range.
Choosing a right processor for Gaming.
if you’re going to play games at any kind of decent detail level, you should certainly buy a dedicated graphics card, but the choice of processor will also make a difference.
You don’t want your enthusiast GPU to be hobbled by a slow CPU, after all. You don’t need to go overboard, though.
For example, you usually won’t gain much by choosing a Core i7 chip over a Core i5, as Hyper-Threading makes little difference in most games.
Even complicated titles such as Battlefield 4 only really take advantage of four cores, so the extra four virtual cores Hyper-Threading provides won’t be much use.
There are exceptions, though. The latest Total War games appear to benefit from a Core i7’s power due to the sheer number of units interacting with each other on the battlefield.
If you’re buying a desktop processor to play games, and aren’t into hugely epic strategy titles, we say get a quad-core Core i5, and preferably the top-spec Core i5-7600K. If you ever find this processor is holding you back, you can always overclock it well beyond 4GHz.
Letters and Suffixes.
Some Intel desktop chips have suffixes, such as K, T or P. These special models have different characteristics than the stock versions.
K denotes an unlocked clock multiplier, so if you have a compatible motherboard you can easily overclock the chip, raising its clock speed significantly for a serious speed increase.
Overclocking can cause system instability and even damage your components, so should be approached with caution.
An overclocked processor will generate an awful lot of heat, so you’ll also need a decent third-party processor cooler to see any kind of decent stable overclock.
There are three desktop Kaby Lake ‘K’ processors: the Core i7-7700K, Core i5-7600K and Core i3-7350K. Bear in mind that these also use more power than non-K chips, even before overclocking.
The Core i3-7350K has a 60W power rating compared to 51W for a normal Core i3, and the Core i5 and i7 processors are rated at 91W instead of 65W.
T-suffix processors have lower clock speeds but also lower power requirements, and so are better for the planet and easier to keep cool.
An example is the Core i5-7600T, which is clocked 700MHz slower than the i5-7600 but has a 35W rather than 65W power draw. You’ll typically find these inside smaller form-factor PCs such as all-in-ones.
All desktop Core i3, Core i5 and Core i7 processors have the same Intel HD 630 graphics chipset, but clock speeds vary between 1,000MHz and 1,150MHz.
The graphics will likely be good enough for e-sports titles such as Overwatch at lower detail levels, but for any kind of serious gaming you should fit a discrete graphics card
Which processor you should choose.
You should now be armed with enough information to make a proper choice about what sort of processor you need. We haven’t yet reviewed the full line of the latest Kaby Lake processors.
The previous generation of Skylake chips is very similar, however, so we’ll refer to them here until we’ve had the full set under the microscope.
Quad-core Intel laptop chips.
Finally, we come to the high-performance ‘H’ suffix processors, which you’ll find in high-end multimedia and gaming laptops. Most of these are quad-core chips with the ‘HQ’ suffix,
But there is one Core i3 model, the Core i3-7100H, that has just two cores and no Turbo Boost. All Core i5 ‘H’ chips have four cores, Turbo Boost and 6MB cache.
Even better, if you need the most powerful laptop possible, you need one of the quad-core Core i7-HQ models,
As four physical cores, plus another four virtual cores thanks to Hyper-Threading and Turbo Boost
It will give you some seriously impressive performance.
You could also go wild and pick up a laptop with an i7-7820HK processor.
which has an unlocked multiplier and will allow you to overclock the chip in your laptop’s BIOS.
Bear in mind that these chips have a higher power draw than the Y- and U-Series processors
So shouldn’t be your first choice if battery life is more important than processing power.
intel’s processor line-up is far from simple. Desktop chips are perhaps more logical than laptop processors but for both,
you should look beyond the Core I branding and check the number of cores, clock speed and Hyper-Threading to truly understand what sort of power you should be expecting
Alpha Suffix Description of Processor
7th Gen Intel® Core™ i7-7700K processor
7th Gen Intel® Core™ i7-7700T processor
7th Gen Intel® Core™ i3-7100H processor
High-performance graphics, unlocked
7th Gen Intel® Core™ i7-7820HK processor
High-performance graphics, quad-core
7th Gen Intel® Core™ i7-7920HQ processor
Extremely low power
7th Gen Intel® Core™ i7-7Y75 processor
7th Gen Intel® Core™ i7-7500U processor
6th Gen Intel® Core™ i7-6700K processor
6th Gen Intel® Core™ i5-6600K processor
6th Gen Intel® Core™ i7-6700T processor
” ” Core™ i5-6600T processor
Core™ i3-6300T processor
6th Gen Intel® Core™ i3-6100H processor
High-performance graphics, unlocked
6th Gen Intel® Core™ i7-6820HK processor
High-performance graphics, quad-core
6th Gen Intel® Core™ i7-6920HQ processor
6th Gen Intel® Core™ i7-6700HQ processor
6th Gen Intel® Core™ i7-6600U processor
” ” Core™ i5-6300U processor
” ” Core™ i3-6100U processor
Unlocked desktop Processor based on the LGA 1150 package with high-performance graphics
5th Gen Intel® Core™ i7-5775C processor
5th Gen Intel® Core™ i5-5675C processor
Desktop processor based on BGA1364 (mobile) package with high-performance graphics
5th Gen Intel® Core™ i7-5775R processor
” ” Core™ i5-5675R processor
” ” Core™ i5-5575R processor
5th Gen Intel® Core™ i5-5350H processor
High-performance graphics, quad-core
5th Gen Intel® Core™ i7-5950HQ processor
” ” Core™ i7-5850HQ processor
” ” Core™ i7-5750HQ processor
Intel® Core™ i7-5650U processor