Console Gamer
Bandwidth for console gamers: HDMI 2.1 vs DisplayPort for PS5 and Xbox
Last updated 2026-06-24
Buy a certified Ultra High Speed HDMI cable for 4K 120Hz on your PS5 or Xbox. HDMI 2.1 is required for that 4K mode, while lower-resolution 120Hz modes can work over lower-bandwidth connections. Check the console, display, port, cable, VRR, and ALLM support as a complete chain.
Display Bandwidth Calculator
Required Bandwidth
Uncompressed
32.27 Gbps
With DSC (Display Stream Compression)
8.61 Gbps
Interface Compatibility
HDMI
DisplayPort
Other connections
Assumes one display with no USB or PCIe data sharing. USB-C uses all four DisplayPort lanes. USB4 and Thunderbolt use the DisplayPort profile listed. The 120 Gbps modes add bandwidth for multiple streams, while one DP 2.1 UHBR 20 stream stays at 77.37 Gbps. Compare checks each display separately.
USB-C
Thunderbolt
USB4
Console gamers on PS5 and Xbox Series X need HDMI 2.1 to hit 4K 120Hz, the top video mode on both consoles. That mode needs about 36 Gbps of bandwidth with the standard HDMI timing, against HDMI 2.1's 48 Gbps ceiling. DisplayPort isn't an option on consoles, so HDMI 2.1 is the only path.
Why this matters for you
The PS5 and Xbox Series X both output HDMI 2.1 with FRL signaling. 4K 120Hz needs a certified Ultra High Speed HDMI cable. 4K 60Hz works fine on HDMI 2.0, and PS5 supports 1440p at 60 or 120Hz on a compatible display. 1080p at 120Hz can also fit within lower-bandwidth links. VRR and ALLM support depends on the console, display, resolution, and port, so HDMI 2.1 is required for 4K 120Hz but not every 120Hz console mode.
Verdict
Use a certified Ultra High Speed cable on an HDMI 2.1 port, because 4K 120Hz at 10-bit needs about 36 Gbps. Lower resolution 120Hz modes can run on slower links.