Speed ​​15 Mbps. What internet speed is enough? Is it true that online games are so undemanding to the speed of the Internet

What does the concept of “normal Internet speed” mean, what should it be for optimal performance and spending leisure time on a personal computer. The same connection will seem to someone quite sufficient, and to someone - the inability to work effectively. What is normal for an Internet cafe, for the University of Moscow State University, for example, "will not be enough."

Using computers at home raises reasonable questions for users: what Internet speed is considered normal for a home and how to choose the right tariff plan.

If the finances of the PC owner are limited, when choosing a tariff for home internet he will definitely encounter a number of offers from providers that prevent him from making the right decision. To avoid mistakes, you should know some parameters that determine the quality of the Internet at home.

To determine what the Internet speed rate is, you first need to familiarize yourself with the basic concepts.

Bits, kilobits, megabits

Data transfer speed is usually measured in bits / sec. But since a bit is a very small value, kilobits or megabits are used:

• Kilobits = 1024 bits.
• Megabit = 1024 kilobits.

With the advent optical cables Internet speeds have skyrocketed. If earlier 128 kbps was considered normal, today the parameter is measured in megabits and is 100 megabits per second (Mbps).

Therefore, megabits per second is the standard unit for measuring speed. modern internet. The conditional classification of Internet communications is as follows:

• slow - 512 Kbps;
• low - 2 Mbps;
• medium - 10 Mbps;
• high - 50 Mbps;
• very high - 100 Mbps.

It must be understood that the lower the speed, the lower the tariff.

A byte is not a bit

Internet users are interested in working with files, their size is usually measured in bytes, kilobytes, megabytes and gigabytes, equal to:

• Byte - 8 bits.
• Kilobyte = 1024 bytes.
• Megabyte = 1024 kilobytes.
• Gigabyte = 1024 megabytes.

Inexperienced users confuse bytes with bits. And they get megabits (Mbps) instead of megabytes. This leads to a serious error, for example, when calculating the download time of files.

It is unrealistic to accurately determine the period for downloading a file, because:

• Providers indicate top speed connections. The average (working) will be lower.
• The speed is reduced by interference, especially if a remote router is used.
• The remote FTP server restricts downloads so much that everything else becomes irrelevant.

But the approximate time, nevertheless, is possible to establish. Calculations will be easier if you round:

• byte = 10 bits;
• kilobyte = 1 thousand bytes.

But it's better to just start downloading and determine the download time using the program than to calculate the time theoretically.

What tasks affect the choice of speed

The lower the Internet connection speed, the smaller the range of available tasks, but the tariff is cheaper. Right choice allows you to feel comfortable without wasting money.

Outlining the circle of interests

The Internet is used to solve various problems:

• Surfing in in social networks, listening to music.
• Online games.
• Organization of streaming broadcasting (stream).
• video calls.
• Watching videos online.
• Downloading music, movies, other files.
• Uploading files to cloud storage.

Choose a connection

When the circle of interests is defined, we set ourselves tasks and choose the appropriate tariff.

Providers offer different kinds connection, for example, 300 rubles per month for Internet access at a speed of 15 Mbps.

There are two numbers in the tariff descriptions:

the second is the transfer (Upload).

If the second number is missing, then the speeds are equal. If necessary, check with your internet service provider.

How much internet speed is enough

To determine this indicator, the user is helped by a number of tasks that he needs to work with a PC:

For social networks and music

For surfing social networks and listening to music high speed need not. The user will feel quite comfortable with 2 Mbps. Even a speed of 512 Kbps will do, but the pages of the sites will open more slowly.

To watch videos online

The following speed indicators for watching videos online are considered normal, depending on the quality of videos and movies:

• SD Video (360p, 480p) - 2Mbps
• HD video (720p) - 5 Mbps
• Full-HD (1080p) - 8 Mbps
• Ultra-HD (2160 p) - 30 Mbps.

100 Mbps - this speed is more than enough to watch online video in any quality. Because browsing is buffered, small dips in speed do not affect browsing.

For streams

To organize streaming broadcasting, you need a stable Internet connection. For a quality stream, the speed should not fall below a critical level. For video stream:

• 480p - 5Mbps
• 720p - 10Mbps
• 1080p - 20Mbps

But these are risky values. The transmission is the most critical, since broadcasting is the uploading of data to the Internet, so we focus on it.

No matter how stable the Internet is, jumps are still possible. The tariff is chosen so as to level them.

We calculate the optimal speed for the Internet by multiplying the speed of a quality stream by 2.5. For example, let's calculate the speed for 480p: 5 x 2.5 = 12.5 Mbps.

Taking into account the fact that the boundary values ​​are risky, we select Upload not lower than 15 Mbps.

Online Games

Games are undemanding to speed parameters. For most popular games, 512 Kbps is sufficient. This value is suitable for:

• Dota 2.
• World of Warcraft.
• GTA.
• World of Tanks.

But downloading the game and downloading updates at 512 Kbps will be very slow, as you will have to download tens of gigabytes. In order not to wait for hours, it is better to provide speeds up to 70 Mbps.

For games, the determining factor is the quality of the communication channel, characterized by the parameter "ping" (ping). Ping is the time it takes for a signal (request) to reach the server and return back (response). Ping is measured in milliseconds (ms).

Ping is affected by:

• The reliability of the Internet provider, which consists in the ability to maintain the declared quality of communication.
• Distance from client to server. For example, the player is located in Sevastopol, and the World of Warcraft game server is in London.

Acceptable ping values:

A persistent ping value above 300ms on any servers is seen as a symptom of serious network connection problems. The reaction time is extremely low.

For smartphones and tablets

If the device is connected to the router via Wi-Fi, it will work in the same way as a computer. The difference is that advanced sites offer pages for gadgets with convenient placement of information on a small screen.

But smartphones and tablets are “sharpened” for mobile Internet. Operators cellular communication to work with the Internet offer:

• 3G standard - up to 4 Mbps;
• 4G standard - up to 80 Mbps.

The operator's website contains a coverage map with marked 3G and 4G zones. The relief of a particular area makes adjustments, then instead of 4G there will be 3G, and instead of 3G there will be 2G - the standard is too slow for the Internet.

4G communication is provided only by devices equipped with modern radio modules.

AT mobile internet the client pays for traffic, not for speed. The question of choosing a normal Internet speed for the device is not worth it. The user selects the appropriate amount of megabytes of traffic.

For video calls

• voice calls - 100 Kbps;
• video calls - 300 Kbps;
• video calls (HD standard) - 5 Mbps;
• voice video communication (five participants) - 4 Mbps (reception) 512 Kbps (transmission).

In practice, these values ​​are multiplied by 2.5 to compensate for spikes.

Factors affecting connection speed

The following factors affect the quality of the connection:

• Wi-Fi standard supported by devices.
• The frequency at which data is transmitted.
• Walls and partitions in the signal path.
• Computer and browser settings.
• VPN and proxy.
• Outdated drivers.
• Interference from other networks.
• Viruses and malware.

You can find out the current connection speed (it is better to check at night) using the SpeedTest service. If it is very different from the one declared by the provider, you need to find the reason.

When choosing a connection speed, the number of users connected to Wi-Fi, the speed characteristics of tasks used in parallel mode and taken into account when choosing a suitable tariff are taken into account.

Conclusion

You can use the Internet in different ways. It is difficult to enumerate all the tasks set. But among those considered, it is necessary to find a similar one and decide on the connection.

Hello, dear readers of the site site!

You must have been interested baud rate over the network (including the Internet), write speed to a flash drive (or hard drive). Today we will deal with the speed of information transfer in computer technology and find out how many megabytes in a megabit!

You will need information from the previous lesson, if you have not read it yet, then be sure to start with it.

Let me remind you that in the last IT lesson we dealt with bits, bytes and multiple prefixes K, M, G, T and found out how many bytes are in a kilobyte (here's lesson 15).

Remembered? Then let's start!

Baud Rate - Units

The minimum unit of measurement for data transfer rate is bits per second, (which is not surprising, because a bit is the smallest unit for measuring the amount of information).

Bits per second or bps(in English bits per second or bps) is the basic unit used to measure the speed of information transfer in computing.

Since not only bits, but also bytes are used to measure the amount of information, the speed can also be measured in bytes per second. Let me remind you that one byte contains eight bits (1 Byte = 8 bits).

Bytes per second or Byte/s(in English byte per second or Byte/s) is also a unit that measures the speed of information transfer (1 Byte / s = 8 bit / s).

* I ask you to immediately pay attention that when reducing bits are written in small letters b» ( bps), a bytes capitalized " B» (M b/s).

Copying prohibited

Question from user

Hello.

Please tell me, I have an Internet channel of 15/30 Mbps, files in uTorrent are downloaded at a speed of (approximately) 2-3 MB/s. How can I compare the speed, is my ISP cheating me? How many megabytes should be at a speed of 30 megabits / s? Confused by the numbers...

Good day!

A similar question is very popular, they ask it in different interpretations (sometimes, very menacingly, as if someone had deceived someone). The bottom line is that most users confuse different units : like grams and pounds (also Megabit and Megabyte) ...

In general, to solve this problem, you will have to resort to a small digression to the computer science course, but I will try not to be boring ☺. Also in the article along the way I will analyze all the questions regarding this topic (about speed in torrent clients, about MB / s and Mbps).

Note

Educational program on Internet speed

And so, with ANY Internet provider(at least, I personally have not seen others) Internet connection speed is indicated in Megabit/s(moreover, pay attention to the prefix "BEFORE"- no one guarantees that your speed will always be constant; it's impossible).

In any torrent program(in the same uTorrent), by default, the download speed is displayed in MB / s (Megabytes per second). That is, I am leading to the fact that Megabytes and Megabits are different values.

Usually, the declared speed in the tariff of your ISP in Mbps divided by 8 to get the speed that uTorrent (or its analogues) will show you in MB/s (but see more on this below, there are nuances ☺).

For example, the rate of the Internet provider for which the question was asked is 15 Mbps. Let's try to translate it into a normal way ...

Important! (from the computer science course)

The computer does not understand numbers, only two values ​​​​are important for it: there is a signal or there is no signal (i.e. " 0 " or " 1 "). These are either yes or no - that is, "0" or "1" is called " Bit" (the smallest unit of information).

In order to be able to write some letter or number, one unit or zero will obviously not be enough (it definitely won’t be enough for the whole alphabet). It has been calculated to encode all the necessary letters, numbers, etc. - a sequence of 8 Bit.

For example, the English capital "A" code looks like this - 01000001 .

And so the code for the number "1" is 00110001.

These ones 8 Bits = 1 Byte(i.e. 1 Byte is the minimum data element).

About prefixes (and derivatives):

• 1 Kilobyte = 1024 Bytes (well, or 8 * 1024 Bits)
• 1 Megabyte = 1024 Kilobytes (or KB/KB)
• 1 Gigabyte = 1024 Megabytes (or MB/MB)
• 1 Terabyte = 1024 Gigabytes (or GB/GB)

Maths:

1. One megabit is equal to 0.125 megabytes.
2. To achieve a transfer rate of 1 megabytes per second, you will need a network connection with a speed of 8 megabits per second.

In practice, usually, they do not resort to such calculations, everything is made simpler. The declared speed of 15 Mbit / s is simply divided by 8 (and ~ 5-7% is subtracted from this number for the transfer of service information, network load, etc.). The resulting number will be considered normal speed (an approximate calculation is shown below).

15 Mbps / 8 = 1.875 Mbps

1.875 MB/s * 0.95 = 1.78 MB/s

In addition, I would not discount the load on the ISP network during peak hours: in the evenings or on weekends (when a large number of people use the network). This can also seriously affect access speed.

Thus, if you are connected to the Internet at a rate of 15 Mbps, and your download speed in the torrent program shows about 2 MB / s - everything is very good with your channel and Internet provider ☺. Usually, the speed is less than declared (this is my next question, a couple of lines below) ...

Typical question. Why is the connection speed 50-100 Mbps, but the download speed is very low: 1-2 MB/s? Blame the ISP? After all, even according to approximate estimates, it should be at least 5-6 MB / s ...

I'll try to break it down point by point:

1. firstly, if you carefully look at the contract with the Internet provider, you will notice that you were promised access speed "UP TO 100 Mbps" ;
2. secondly, in addition to your access speed, it is very important that where are you downloading the file(s) from. Let's say if that computer (from which you are downloading a file) is connected via low-speed access, say 8 Mbps - then your download speed from it at 1 MB / s is, in fact, the maximum! Those. try to start downloading the file from other servers (torrent trackers);
3. thirdly, you may already have some kind of the program is downloading something else. Yes, the same Windows can download updates (if, in addition to a PC, you have a laptop, smartphone, etc. devices connected to the same network channel - look at what they are doing ...). In general, check what your Internet channel is loaded with;
4. it is possible that in the evening hours (when the load on the Internet provider increases) - there are "drawdowns" (you are not the only one who decided to download something interesting at that time ☺);
5. If you are connected through a router - check it too. It often happens that inexpensive models cut speed (sometimes they just reboot), in general, they simply cannot cope with the load ...
6. check driver for your network card(for example, on the same Wi-Fi adapter). I have encountered the situation several times: after the network card (the driver for the network adapter in 90% is installed by Windows itself when it is installed), the speed of access increased significantly! The default drivers that come with Windows are not a panacea...

However, I do not rule out that your Internet provider (with old equipment, clearly overpriced tariffs that are only theoretically available on paper) may be the culprit for the low access speed. Just to start with, I wanted to pay attention to the above points ...

Another typical question. Why then indicate the speed when connecting in Mbps, when all users are guided by MB / s (and in programs it is indicated in MB / s)?

There are two points:

1. when transferring information, not only the file itself is transmitted, but also other service information (some of which is less than a byte). Therefore, it is logical (and indeed, historically so) that the connection speed is measured and indicated in Mbps.
2. the higher the number, the stronger the ad! Marketing has not been canceled either. Many people, they are quite far from network technologies, and seeing that somewhere the number is higher, they will go there and connect to the network.

Personally, my opinion: for example, it would be nice if providers indicated next to Mbps real speed downloading data that the user will see in the same uTorrent. Thus, both the wolves are fed and the sheep are safe ☺.

By the way, to everyone who is dissatisfied with their speed of access to the Internet - I recommend that you read this article.: .

Suggestions on the subject are welcome...

In the section on the question, is 15 Mbps a lot? Advise how much is best, so that online movies load quickly, web cameras, satellite maps. given by the author quit the best answer is 4 is enough for me 15 is enough

Answer from 22 answers[guru]

Hello! Here is a selection of topics with answers to your question: Is 15 Mbps a lot? Advise how much is best, so that online movies load quickly, web cameras, satellite maps.

Answer from Eurovision[guru]
I have 15 M / bit of this is enough! - everything loads fine

Answer from Special[guru]
For everyday sitting in the network - this is normal! ! The bigger, the better! ! True and more expensive!

Answer from Kostya Maglevany[newbie]
I have enough for 2 .... I watch a movie and at the same time I'm in contact .... the movie loads perfectly)

Answer from Yury Fedotov[newbie]
I finally have a megaphone modem with a speed of 3.6 Megabi with a download speed of 450 kilobytes / s, nothing slows down at all, and 15 Mb / s is about 1.8 megabytes / s, nothing should slow down very quickly, ask the provider what your tariff is and set it to the maximum, naturally you will pay more !

Answer from Marina Vkusnyashka[master]
15 Mbit is about 1.7 MB/s. . Normal speed. A movie in DVDrip quality will be downloaded in 20 minutes.

Answer from Vladimir Makarenko[guru]
Set up a flash player Right-click on it while watching an online movie, select the setting and click on the little yellow daddy and move the slider all the way to the right, And that's it!

Russia has a very good and, no less important, affordable home Internet. Seriously! In villages and a very deep province, things are, of course, worse, but take any, even a small city in the European part of the country and look at the tariffs. For 300-400 rubles a month, you can bring Internet to an apartment at a speed of around 25-50 megabits per second, and for some promotion, all 100 megabits.

For comparison: in "civilized" countries fast internet(both home and mobile) is much more expensive. And the concept of “monthly data limit” still lives there. We have this left only with cellular operators.

However, cheapness is not a reason to pay for something that you do not use. Even a hundred rubles saved warms the wallet, and therefore the tariff for home Internet must be chosen based on real speed needs. Let's figure out how many megabits per second are required in various situations, and start with basic concepts.

Megabits, megabytes and real speeds

The data size is usually measured in bytes. For example, an HD movie weighs between 700 megabytes (megabytes) to 1.4 gigabytes (gigabytes), while Full HD is 4 to 14 gigabytes.

It is customary to indicate the data transfer rate in bits (not bytes!) Per second, and sometimes this causes misunderstanding.

Byte ≠ bit.

1 byte = 8 bits.

1 megabyte = 8 megabits.

1 megabyte per second = 8 megabits per second.

If the user does not distinguish between bytes and bits, then he can easily confuse them or take them for the same thing. In this case, it will calculate the approximate download time of an HD movie via torrent like this:

1. The film weighs 1,400 "mega".
2. Internet speed 30 "mega" per second.
3. The movie will download in 1400 / 30 = 46.6 seconds.

In fact, the Internet speed is 30 megabits per second = 3.75 megabytes per second. Accordingly, 1,400 megabytes should be divided not by 30, but by 3.75. In this case, the download time will be 1,400 / 3.75 = 373 seconds.

In practice, the speed will be even lower, because Internet providers indicate the speed "to", that is, the maximum possible, and not working. In addition, interference, especially when transmitting over Wi-Fi, network congestion, as well as limitations and features of user equipment and service provider equipment, all contribute. You can check your speed with , and increase it with .

Often the resource from which you download something becomes the neck. For example, your Internet speed is 100 megabits per second, and the site gives data at a speed of 10 megabits per second. In this case, the download will occur at a speed of no more than 10 megabits per second, and there is nothing to be done about it.

What internet speed do you really need

Obviously, the above table needs clarification.

Questions and answers

What to do if the Internet is used on two or more devices at once?

Let's say you're streaming Full HD video on smart TV, the wife is surfing YouTube on a laptop with an HD screen, and the child is watching something from a smartphone or tablet, also in HD quality. Does this mean that the numbers from the table need to be summed up?

Yes, absolutely right. In this case, you will need about 20 megabits per second.

Why do different sites have different speed requirements for watching videos of the same resolution?

There is such a thing as bitrate - the amount of information that encodes an image per unit of time, and, accordingly, a conditional indicator of picture and sound quality. The higher the bitrate, the more better picture. That is why on torrents you can find versions of the same movie with the same resolution, but different sizes.

In addition, there are ultra-smooth videos at 60 frames per second. They weigh more and require faster internet.

Is it true that online games are so undemanding to the speed of the Internet?

Yes, for most games like CS, Dota 2, WoT, WoW and even GTA 5, only one megabit per second is more than enough for multiplayer, but in this case, ping becomes decisive - the time it takes for a signal to travel from you to the game server and back. The lower the ping, the lower the delay in the game.

Unfortunately, it is impossible to know in advance even an approximate ping in a particular game through a particular provider, since its value is not constant and depends on many factors.

Why does the picture and sound from the interlocutors go to me normally during video calls, but not from me to them?

In this case, not only the incoming, but also the outgoing Internet speed becomes important. Often, providers do not indicate the outgoing speed in the tariff at all, but you can check it yourself using the same Speedtest.net.

For broadcasting through a webcam, an outgoing speed of 1 megabit per second is sufficient. In the case of HD cameras (and even more so Full HD), the requirements for outgoing speed increase.

Why do ISPs start at 20–30 or more megabits per second in tariffs?

Because the higher the speed, the more money you can take. Providers could keep tariffs "from the past" at a speed of 2-10 megabits per second and reduce their cost to 50-100 rubles, but why? It is much more profitable to increase the minimum speeds and prices.