The maximum 8K refresh rate supported by HDMI™ 2.1b on the MSI RTX 090 with Display Stream Compression (DSC) is up to 120Hz. The NVIDIA GeForce RTX 5090, which corresponds to the MSI RTX 090 model, supports HDMI 2.1b with a specification of up to 4K at 480Hz or 8K at 165Hz with DSC. However, the standard widely referenced for HDMI 2.1b typically lists 8K resolution up to 120Hz with DSC. This aligns with the 8K @ 120Hz capability demonstrated using HDMI 2.1b and DSC in other hardware setups, including gaming showcases.
Thus, for the MSI RTX 090 using HDMI 2.1b and DSC, you can expect support for 8K at a maximum refresh rate of 120Hz.
