New reports suggest that AMD's upcoming generation of graphics cards (likely named RDNA 5) will embrace the newer HDMI 2.2 standard. However, don't expect a full doubling of bandwidth right out of the gate. Reports indicate these next-gen GPUs will support HDMI 2.2 speeds of up to 80 Gbit/s, a significant bump from HDMI 2.1's 48 Gbit/s, but fall short of the standard's theoretical 96 Gbit/s maximum.

According to Kepler, the RDNA 5 (or UDNA) GPUs, internally codenamed GFX13, are specified to support two modes: 64 Gbit/s and 80 Gbit/s. This implies that the highest 96 Gbit/s mode, which would demand the new “Ultra96” HDMI cables, will not be supported, at least initially. It remains unclear whether this is a hardware limitation of the upcoming GPUs or if full 96 Gbit/s support could be enabled later (for example, through driver updates).

The leaker also noted that there is currently no information regarding DisplayPort 2.1b compatibility for the GFX13 architecture. On the other hand, Nvidia's RTX Pro Blackwell and GeForce RTX 50 series already support this standard, putting them ahead in that specific aspect.

Kepler's report doesn't distinguish between the Radeon RX (consumer) and Radeon Pro (professional) series of GPUs. The update refers broadly to the GFX13 display engine, and historically, AMD has sometimes differentiated display output capabilities between its consumer and professional lines. Whether this trend will continue with the GFX13 remains to be seen.

KitGuru says: Would you rather see AMD pushing the DisplayPort standard further on its upcoming GPUs instead of HDMI?

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