ZH8 XH90 A9, A8, XH95, XH85 XH80
HDMI 2.1 (48 Gbps) no 2x no no
HDMI 2.1 (40 Gbps) 1x no no no
HDMI 2.0 (18Gbps) 3x 2x 4x 4x
FRL (Fixed Rate Link) Yes Yes no no
eARC (Enhanced ARC) Yes Yes* Yes no
ALLM (Auto Low Latency Mode) no Yes* no no
VRR (HDMI VRR) no 48-120Hz * no no
VRR (AMD FreeSync) no no no no
VRR (NVIDIA GSync) no no no no
4K HFR 120fps (@ 10bit 4: 4: 4) Yes Yes* no no
2K HFR Yes Yes Yes Yes
*: only after a future firmware upgrade!