What is the speed of the fiber optic

VDSL, LTE, fiber optics - which is faster?

VDSL, LTE or fiber optics - the types of data transmission are very diverse. But which one is actually the fastest? We've chased the three internet types through a speed test and we're going to show you the results. There are big differences between theory and practice.

First of all: What do the speed data mean?

In the following, we will repeatedly talk about speeds in Mbit / s - megabits per second. You can't really do much with this value at first.

  • To get a clear amount of data, roughly divide the information by 10. For a line with 16 Mbit / s this results in a value of 1.6. This roughly corresponds to your download speed: 1.6 MByte / s - megabyte per second.
  • Strictly speaking, you'd have to divide the values ​​by 8. This results in a download speed (downstream) of 2 MByte / s for a line with 16 Mbit / s. However, you can only achieve these values ​​in theory. The actual speeds usually look different.

3rd place: VDSL too slow for the competition

VDSL (Very High Speed ​​Digital Subscriber Line) is probably the most common type of transmission. Nevertheless, compared to its predecessor, DSL, the line gives a lot. However, the values ​​fluctuate very strongly here in some cases.

  • Theoretically, you can achieve a download speed of 250 Mbit / s with a VDSL connection. The upload, on the other hand, is 40 Mbit / s, which was almost the maximum download rate a few years ago.
  • In practice it looks a little different: In fact, you can usually only use 70 to 80 percent of the speed.
  • In technical jargon, VDSL is referred to as Fiber to the Curb. This means that the longest path of the signal is covered over fiber optics. However, it ends at the DSLAM, the gray distribution box on the street. The last distance the signal travels over the copper line to your home. The further you are from the DSLAM, the slower your upstream and downstream will be.

The advantage of VDSL is clearly recognizable: Compared to the other types of transmission, the DSL descendant is available almost everywhere in Germany. The offer is also steadily expanding in rural areas.

2nd place: The fast LTE radio network leaves nothing to be desired

Almost every new smartphone supports the new LTE (Long Term Evolution - 4G) transmission. But what does the successor to the slow UMTS network really bring?

  • In theory, speeds of up to 300 Mbit / s download and 50 Mbit / s upload can be achieved with LTE. For this you would have to be the only person who is currently connected to the Internet.
  • The actual speed depends on the number of participants in a radio cell. The more smartphones that connect to the Internet at the same time, the worse the bandwidth.
  • That is why the large providers such as Telekom and Vodafone also make much smaller offers: Depending on the contract, you are entitled to speeds of 7 to 50 Mbit / s. The real upload speed, on the other hand, is up to 15 Mbit / s.
  • Usually, however, you will be throttled after a certain limit and will have to cope with the slower EDGE standard by the end of the month.
  • The advantage here is also obvious: You don't need a telephone socket or annoying cables in your apartment.

Download rates in the three to four-digit range are currently only achieved in cities. In rural areas, on the other hand, the download rates are at DSL level, i.e. 21 to 50 Mbit / s. It will certainly take some time before the transmission standard can be achieved across the board.

1st place: With a fiber optic connection, you speed away all of them

The throne clearly belongs to the fiber optic connection - at least in theory. In practice, fiber optic connections are only slightly faster than LTE or VDSL connections. Nevertheless, this is probably the type of transmission of the future.

  • Internet via fiber optics is also called fiber to the house. Values ​​of 255 terrabit / s have already been measured in the laboratory. But private households will probably not come up with these results anytime soon.
  • With most websites, however, you cannot use the speed at all because a single connection does not provide such a fast data stream.
  • In practice, download rates of 100 to 1,000 Mbit / s result. The upload rates are only half as high: between 50 and 500 Mbit / s.

In Germany, only Telekom and a few small local providers such as NetCologne, M-net and EWE are currently laying out fiber optic cables. This means that only a few households can enjoy the high speed frenzy. In the future, however, fiber optic technology will certainly be expanded even further. You can find the first offers with our DSL comparison calculator.

In the video: Telekom rolls out VDSL Super Vectoring

You can find out which types of transmission are available in your home on the website of the Federal Ministry of Economics and Technology. In this practical tip, we explain the differences between DSL and VDSL.

(Original tip written by: Marius Eichfelder)