No, both of them are different in many ways. HDMI standard support transmission of HD video, Audio Channel Return, and internet speeds of up to 100 MB/s. This is helpful for streaming movies and games. However, the limited bandwidth of HDMI means that you still have to use dedicated Ethernet cables. On the other hand, DP cables support higher bandwidth than HDMI cables. They can transmit more signals at the same time because of this. This enables you to attach several monitors to your computer. So, if you want to use a multi-monitor setup, you have to use DP cables rather than HDMI.