Differences Between DP1.4 And DP1.2

DisplayPort (DP) is a high-definition digital display interface standard that can connect computers and monitors, as well as computers and home theaters.
In May 2006, the Video Electronic Standards Association (VESA) finalized version 1.0 of the standard, which was upgraded to version 1.1 in 2008 to provide support for HDCP. Version 1.3 increased the total bandwidth to 32.4Gbps(4.05GB/s), with each of the four channels allocated 8.1Gbps. DisplayPort has won support from industry giants like AMD, Intel, NVIDIA, Dell, HP, Lenovo, Philips, Samsung, AOC, and it's free to use.

DP interface currently belongs to the output/input interface of professional devices, and the display that supports DP interface is mostly used in professional esports. Mainly because of its stable and high refresh rate, because this interface can reach 144Hz or even 240Hz stably, can cope with professional esports on the demand for screen playback.
The latest HDMI 2.1 specification supports video resolution and refresh rates including 8K 60Hz and 4K 120Hz.

DP2.0, as the fastest audio and video data exchange protocol, has 16K super resolution and 80 Gbps bandwidth capacity. Compared with the previous generation DP 1.4, there is a qualitative leap. DP2.0, which stands for DisplayPort2.0, is a digital audio and video data exchange protocol released by VESA video electronic standards association in 2019. It is mainly used to connect video sources with devices such as monitors, and also supports carrying audio, USB and other forms of data.

Display Port 1.4 vs Display Port 1.2 

Interface Appearance

According to THE VESA Association, the DP2.0 manager, the DP Alt mode works seamlessly with the USB4 specification. USB4 combines the Lightning and USB protocols and will be promoted on the basis of the lightning 3 royalty free.

USB4 adopts USB-C interface design, which also means that DP2.0 physical interface can be transformed into the new USB Type-C interface. Therefore, DP2.0 interface can be in two forms: DP and USB Type-C.
To distinguish it from normal Type-C interfaces, DP2.0 adds a DP identifier to the interface. Just like the lightning logo next to the Lightning 3 interface, users can easily identify the DP2.0 interface.

Therefore, DP2.0 has two physical shapes, DisplayPort and USB Type-C, and DP1.4 is still the traditional DisplayPort interface.

Transmission Bandwidth

DP 2.0 is designed with a transmission bandwidth of up to 80Gbps, 2.5 times that of the current DP1.4 and 1.6 times that of HDMI 2.1. It supports a maximum resolution of 16K (15360*8460) and even a dual-screen 4K 144Hz lossless.
At the same time, DP2.0 uses the latest coding protocol, the bandwidth utilization of the new standard is up to 97%, the peak effective bandwidth is 77.4 Gbps, about 3 times of DP1.4 effective bandwidth.
DP2.0 has 80Gbps bandwidth and supports 16K@60Hz, 8K@120Hz and 4K@144Hz. DP1.4 has a bandwidth of 32.4Gbps and supports 8K@30Hz and 4K@120Hz.

Display Port 1.4 vs HDMI2.1

HDMI interface was introduced earlier than DP interface (HDMI:2003 DP: 2006). That's partly why computers still use VGA (a standard introduced in 1987), and it took a long time to shake people's habits. 

HDMI 2.1 currently supports the same resolution as DP 1.4, both supporting 7680 x 4320 at 60Hz 8K, which is not much of a difference.

But in terms of user scalability, DP can continue to expand new technologies. For example, the latest DP1.4 has added support for DSC (Display Stream Compression), which can compress images 3:1. This reduces the power consumption of transmission and also reduces the need for bandwidth. It can support the transmission mode of 8K/4K 60Hz, reducing the demand for bandwidth in the transmission process.

Compared with the widely used HDMI interface, the effect of DP interface is more homogeneous, and the advantage is not obvious. In addition, there are some disadvantages such as difficult conversion and fewer supporting devices, but I believe that this will not stop video enthusiasts from demanding higher picture effects.

Prons of DP:

1. AMD multi-screen splicing technology must have DisplayPort interface.

2, Higher Bandwidth, lower cost. The Dp interface can easily support ultra-high resolution displays such as 2560×1600.

DP responds faster at the same resolution, and DP supports higher resolution. HDMI can only transmit up to 30 frames per unit of time due to its limited bandwidth. DP doesn't have this limitation, so at high resolution (3840*2160 +) the DP interface is better, but at 1080P there is not much difference.

The difference between HDMI and DP is the number of frames per unit of time. HDMI can only transmit up to 30 frames, while DP has no limit.

3. Free -- The latest DisplayPort port doesn't require an annual subscription fee like HDMI. You don't have to pay for every product that has an HDMI port like you do with HDMI ports. It is completely royalty-free in the true sense.

DP interface is only popular in THE PC field and high-end display, DP line transmission distance is generally about 10 meters stable transmission.

Prons of HDMI:

The current mainstream HDMI 1.4 theory supports 1080P 144Hz, 2K 75Hz, 3840 x 2160/30Hz, 4096 x 2160/24Hz.

HDMI2.0 bandwidth up to 18Gbps, 1080P 240Hz, 2K 144Hz, 4K 60Hz, 5K 30Hz.

The latest HDMI2.1 can support 2K 240hz, 4K 144hz, 5K 60hz, 8K 30hz.

There are many types of devices that support HDMI interfaces. In terms of popularity, it can be said that HDMI interface has an absolute advantage. In daily life, HDMI ports are obviously more than DP ports, dominating most TV, projector and other display devices. Home set-top boxes are also widely used to HDMI interface, in addition, the current well-known game console platforms are using HDMI interface as a line transmission way.

You have successfully subscribed!
This email has been registered