One of the most prevalent specifications you can find when considering a new mouse and contrasting specifications is the DPI, or dots per linear inch, a standard way to quantify mouse sensitivity. How DPI can affect gaming mouse performance and the experience with it is not always immediately apparent.

What's DPI here?

Referring to how a virtual mouse calculates physical distance, DPI stands for dots per inch. As dots are not actually used as part of the procedure, the more technically precise term is actually CPI, or counts per inch.  However, when comparing alternatives, DPI is the abbreviation you are most likely to find, so we will be using that for your convenience.  

In comparison to the distance a user pushes the mouse, DPI explicitly relates to the calculation of the speed at which a mouse cursor moves on-screen.

For instance, if you were to shift your mouse an inch with a low DPI to the right and then move your mouse an inch with a higher DPI to the right, in the second case, the cursor on-screen will move more, despite the distance covered by the sensor of the mouse is the same.

To be specific, DPI is just a calculation of the physical relationship and is not indicative of the accuracy of the mouse or the sensor's precision.

The higher the DPI, the quicker the rotation of the cursor and the more sensitive it feels. Simple enough, right?

Sensitivity and DPI

In our minds, DPI and sensitivity are always associated. For certain people, it seems that growing the DPI of a mouse makes the mouse more sensitive. These are, however, separate measurements. DPI is a product of the physical hardware parameters of the mouse. Usually, sensitivity is determined by machines, usually an operating system such as Windows.

You may have low DPI and high sensitivity, and vice versa. Cranking up the sensitivity on a low-DPI mouse is not an optimal option for certain purposes. When the sensitivity of the program is asked to compensate for low-DPI hardware, when zoomed in on a target, users can experience herky-jerky output or make precise adjustments in a configuration.

And why the high DPI?

You'll often see a higher DPI (often 10,000 and above) advertised as an attractive quality while studying computer mice. While a higher DPI will theoretically result in marginally lower precision, it would have a marginal effect on the average consumer. It is typically worth it to have the option of using a higher DPI.

For eg, if you're operating on a high-resolution monitor, a higher DPI could come in handy. It will take longer to move the cursor with a low DPI from one hand to the other. A higher DPI could save you time and effort, boost ergonomics, and greatly affect your workflow if you made this movement several times a day. 

However, if you do anything that needs greater detail, such as drawing with a mouse in a modeling program, a lower DPI might be a better fit because it makes for finer and more accurate movement.

Gaming and DPI

DPI also has a major effect on the performance of PC gamers, which is why the DPI specification is often placed front-and-center on product pages for a gaming mouse.

Your aiming reticulum can travel around the screen quicker while playing a first-person shooter with high DPI settings, which will involve smaller gestures from your hand. This can be useful for instantly whipping around, or with less time to pull your sights from one side of your show to the other. This can be extremely helpful, particularly in games where speed is necessary, or if you're playing on a monitor with a higher resolution.

In games, however, a high DPI is not necessarily desirable.

A lower DPI could be preferable in certain cases such as when using a zoomed-in pistol, in an RTS where careful unit selection is a vital part of a plan, or in a first-person shooter. When you have more room to find the correct spot to press, having to drag the mouse forward helps in greater precision.

Having said that, how can someone pick between a high or lower DPI mouse? Luckily, you don't usually have to pick. With the click of a button, most modern mouse, and especially gaming mouse, enable you to adjust your DPI. 

Does the perfect DPI number exist? 

Actually not. It depends on your choice and what you do with the mouse. An adjustable DPI has the whole function of helping the user to find the settings that fit for them. There's no one environment that fits everybody, which is why getting choices is perfect.

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Increasingly, high-end smartphones sport blazing-fast 90Hz and even 120Hz refresh rate screens. On paper, this looks amazing. It's yet another way in which smartphones strive to separate themselves from each other. But can you purchase a phone because of this new trend in display technology? It depends frankly.

The advantages of phones with a high refresh rate and even how they function are rarely well known. Although games and content can look much better, it depends a lot on the customer and the smartphone whether it's worth the extra battery usage. With all that insight, here's what you need to learn about refresh rates.

 

What is Refresh Rate?

The refresh rate is a measure of the number of times a screen redraws an image. In basic terms, a higher refresh rate means less motion blur and a much smoother picture of the picture. Most smartphones today are packed, regardless of the price, with 60Hz displays. It is measured in Hertz. A 60Hz screen refreshes 60 times per second, 90Hz is 90 times per second, and 120Hz is 120 times per second. So a screen of 120 Hz refreshes twice as fast as a screen of 60 Hz, and 4x faster than an old 30 Hz Television.

The screens aren't static. On the screen of your phone, text and motion look seamless since each pixel changes to show the new content from the processor of your smartphone. But this doesn't happen spontaneously. At frequent intervals, known as the refresh rate, panels change their content.

Faster upgrade times often result in lower lag, as the pixels are updated more regularly. For comparison, a 60Hz screen takes 16.6 ms to completely refresh, 11.1ms for 90Hz, and only 8.3ms for a 120Hz rate. The refresh rate is not the only component in the latency of the round-trip display, but it is the main contributor.

Not all 120Hz smartphone displays are produced in the same way, which is why

Your smartphone's screen doesn't refresh all at once per period though. Instead, before the entire monitor changes at the appropriate rate, each horizontal row of pixels refreshes in turn. When you record a screen in slow motion, you can see this in effect and it's the reason why screens flicker if you view them through the viewfinder of your mobile camera. In other words, the display is continually updated and loading, but it takes time for one full update to complete the loop.

 

Should I get a phone with a high refresh rate?

In modern smartphones, especially in the premium market, 90Hz and 120Hz displays are increasingly popular. In inexpensive mid-tier handsets as well, the role is also increasingly available.

That being said, a small part of the display specs of a smartphone is the refresh rate. It's obviously not a big enough attribute to focus the whole purchase on. Ultimately, factors such as color gamut, contrast, white temperature, and resolution have an equally significant effect on the screen output of your phone.

 

If you still have your heart fixed on a higher refresh rate, here are only a couple of the best 90Hz or 120Hz displays for rocking phones:

Samsung Galaxy S20 5G – 120Hz display

OnePlus 7T – 90Hz display

Realme X50 Pro 5G – 90Hz display

Asus ROG Phone 2 – 120Hz display

Google Pixel 4 XL – 90Hz display

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What is a Solid-State Drive (SSD)?

The new generation of storage units used in computers is a solid-state drive (SSD). By using flash-based memory, which is considerably faster, SSDs replace conventional mechanical hard disks. Older systems for hard disk storage run slower, which also makes the machine run slower than it should. Thanks to their low read-access times and high throughputs, SSDs considerably speed up computers.

Why You Should Really Buy a Laptop With an SSD?

You're not going to own a brand new vehicle with a Ford Model T engine. Then why would you integrate a laptop that uses an older style hard drive into the knowledge superhighway? If you want a fast, sensitive notebook, why don't you need a solid-state drive? (SSD).

The disk drive of a laptop is infinitely more critical than other elements, including its CPU, RAM, and graphics chip, when it comes to overall performance. Your processor is clicking its fingers waiting for data to load from the disk while you boot the device, launch programs, and turn between tasks. Your OS and applications use virtual memory (also known as swap files) in the background, even though you don't access files, move data, or start apps.

 

SSD in laptop

Hard-disk drives use a spindle with a technology that dates back to the 1950s that flies over a spinning magnetic platter grabbing data like an old-school record-player needle drawing sound from a vinyl LP.

Here's why you need an SSD or let's say some benefits of SSD on laptops.

 

Performance Improvements

Because there are no moving parts in a solid-state drive, it is able to read and write data exponentially faster than a hard drive. When you boot your laptop or open a program, the real-world difference is more apparent.
 

Timing for opening apps

It almost goes without mentioning that, with an SSD, copying files is exponentially easier. Models with SSDs copied files at an average rate of 237.8 megabytes per second from laptops, whereas those with hard drives averaged just 33.9 MBps

Durability and Life of the Battery

SSDs, since they don't have to control any moving components, often consume less power than hard drives. In the Laptop Battery Survey, which includes continuous browsing over Wi-Fi, the average SSD-enabled laptop was benchmarked, it lasted 7 hours and 9 minutes. The average time for hard drive-powered laptops was just 5 hours and 43 minutes.

 

Storage

SSD-containing laptops typically have just 128 GB or 256 GB of capacity, which is adequate for all your programs and a reasonable amount of knowledge. Users that have loads of challenging games or large libraries of media, though, may want to save any files in the cloud or install an external hard drive. Many gaming and workstation-class laptops, having a fast SSD and a spacious hard drive, offer the best of both worlds.

A minor hassle may be the lack of storage, but the increase in speed is worth the trade-off. 256GB is a lot more affordable than 128GB if you can possibly handle it.

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A Graphics Card is a piece of hardware for the computer that creates the image you see on a screen. The Graphics Card is

responsible for rendering an image to your computer, which is achieved by translating data into a signal that can be interpreted by your monitor. The better the graphics card, the better, and it is possible to create a clearer image. For gamers and video editors, this is clearly really relevant.

Types of Graphic cards

• Integrated - Built-in graphics on a motherboard where no add-in card is included. These are a cost-effective model, but cannot be quickly upgraded, installed into most 'normal' laptops and computers.

• Discrete - An add-in graphics card that is installed onto the motherboard as an extra component.  Ideal for those wanting to modify their system by upgrading the graphics cards. Laptops have integrated a graphic card which means that discrete graphic cards can’t be used in a laptop.

Expansion Slots

If it was a pc then you can expand your graphic card but you can’t expand your graphics card on your laptop. Since the laptop contains Integrated graphics cards the expansion is really difficult. The user usually buys the laptop with the best graphics card built-in, in order to have the best fps while gaming or video rendering.

 

Gaming and Editing

Not only are graphics cards useful for gaming, but standalone graphics cards will also support users of the picture and video editing software greatly, as they can increase the speed at which photographs can be created and help users of high-def displays.

 

Manufacturers

There are two main manufacturers of discrete graphics cards, AMD and Nvidia -  Some users have allegiances to a particular brand but each will do the same job. AMD also produce some integrated graphics option as well as the current market leader- Intel. But intel graphics cards are the worst once. They cannot do any gaming or editing. Highly recommend buying a laptop with a graphics card of AMD or Nvidia since they give really high fps while gaming and fast rendering while video editing. AMD and Nvidia are two rival brands trying to make the best graphics card.

 

Ram configuration

Current graphics cards also contain RAM memory, which is a dedicated graphics ram, but it is separate from the RAM on your PC. The size of most modern graphics cards varies from 512 MB to 8 GB, with DDR3 and GDDR5 SDRAM being the most common formats.

For players, a minimum of 1GB of memory is recommended, although this has to be matched with other features of the card and the resolution at which a game is played.

 

Output Support

Since in laptop the graphics cards are already implemented in the motherboard there is no need for output support. But you are a computer enthusiast you can also input graphics cards through output options.

• VGA (Video Graphics Array) - 15pin analog connection also known as D-Sub- This is the earliest video connector and so is the least efficient. VGA ports work well enough but other ports provide a better video quality.
• HDMI – HDMI is one of the more popular connections due to its speed and versatility. HDMI will carry both video and audio signals.

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