PS5: the HDMI 2.1 port is much less powerful than on Xbox Series X

The PS5’s HDMI 2.1 port delivers a maximum bandwidth of 32 Gbps against the 48 Gbps provided by the standard. However, the Xbox Series X’s HDMI port goes up to 40 Gbps.

Credit: Phonandroid

The info comes from a video from the YouTube channel HDTVTest that we suggest you watch at the end of the article. They analyzed in detail the HDMI 2.1 output of the PS5. The HDMI 2.1 standard is the latest video cable standard available. It allows the management of significantly higher definitions up to 4K 120 Hz or even 8K 120 Hz and even a theoretical maximum definition of up to 10K.

HDMI 2.1 also coincides with the launch of a new category of cables dubbed Ultra High Speed. The combination of these new cables and the implementation of HDMI 2.1 makes it possible to achieve a theoretical maximum speed of 48 Gbps.

The PS5’s HDMI 2.1 port is restricted to 32 Gbps

HDMI 2.1 also offers the following features:

  • Dynamic HDR
  • Display Stream Compression (DSC) 1.2
  • High Frame Rate (HFR), higher refresh rates in 4K, 8K and 10K – up to 120Hz
  • Dolby Atmos and DTS: X compatibility
  • Variable Refresh Rate (VRR)
  • Quick Media Switching (QMS)
  • Quick Frame transport (QFT)
  • Auto Low Latency Mode (ALLM) on compatible TVs

However, according to HDTVTest, Sony has restricted the video port of the PlayStation 5. According to their tests, the next-gen console is unable to deliver bandwidth greater than 32 Gbps through its HDMI 2.1 port. And the VRR and ALLM features are totally disabled for the moment. Which is rather a surprise.

Because they also tested the port, also HDMI 2.1, of the Xbox Series X: the Microsoft console is thus able to deliver 40 Gbps, ie much closer to the theoretical maximum of the protocol, in addition to having the VRR and the ALLM which automatically activates a mode adapted to the game with a latency of less than 1 ms on compatible televisions.

Also read: PS5: 4K, 60 fps, PSVR… here is the list of PS4 games which are entitled to next-gen improvements

We imagine at this stage that Sony temporarily restricts certain capabilities of the next gen console, with the aim of maximizing the player experience in the most common use cases. There is little doubt, however, that these restrictions will be gradually lifted via firmware updates over the coming months.

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