Quote from: true HDMI 2.1 48G tho? on June 15, 2023, 09:07:06UHD 144 Hz PC monitor can be driven to its full potential?
Modern 144Hz 4k monitors do not have full-fledged HDMI 2.1 ports at the input - greedy manufacturers, for some reason, cut the bandwidth of 2.1 receivers to 24Gb / s, as tests and customer reviews showed. Therefore, you will NOT be able to connect such a monitor at 144Hz (and even more so in 30-bit color) via HDMI 2.1, even if it gives out full-fledged 48Gbps on the PC side (excluding service traffic - only usefull data is 42Gbps)
At present, the only way to connect such monitors if your monitor has a TB4 input is with a special TB4 cable, in video traffic tunneling mode. And of course your PC/laptop must also have a TB4 output.
Most likely with AMD processors you will not be able to connect such a monitor at 144Hz, because. there is no hard evidence that USB40 is capable of tunneling 40Gbps video traffic like TB4 ports.
You need to wait for new models of processors, graphics cards and monitors that will (probably) support full DP2.0+ with 80Gbps from autumn 2023. This will give support for both 4k@240Hz with 30-36 bit color or support for 8k@60Hz with 36 bit color, finally in lossless mode, because at the moment all laptop/PC manufacturers lie about supporting 8k@60Hz even in 24-bit color - neither HDMI 2.1 nor 1/2 DP2.0+ (as in Zen4 Phoenix 40 series) support 8k@60 24bit in 4:4:4 lossless monitor mode. Only with lossy DSC compression.
The shame of the IT industry is that the DP2.0 standard was released back in 2019, and has not yet been implemented anywhere, except for AMD's recent release of a series of professional discrete cards in May.