DOCSIS 4.0 is not yet commercially available, but it has a download speed of 10Gbps and an upload speed of 6Gbps. GPON has a download speed of around 2.5Gbps and an upload speed of around 1.25Gbps. DOCSIS 3.1 falls in between with a maximum download speed of 10Gbps and an upload speed of 1Gbps.