How long does it take to copy 100 GB over WiFi 6? OFDMA and signal guide

How this is calculated

WiFi 6 mostly matters for multi-device consistency rather than single-link peak. OFDMA and MU-MIMO keep speeds stable when the network is busy, which is where WiFi 5 falls apart. For a single device doing a bulk transfer, the practical improvement over 5 GHz 80 MHz WiFi 5 is 2-3x, not the 7x the marketing implies. WiFi 6E on the 6 GHz band typically does better than 5 GHz because the spectrum is cleaner.

Verdict

100 GB at WiFi 6's realistic 1.2 Gbps sustained rate on a clean 5 GHz 160 MHz channel works out to about 11 minutes 7 seconds. 802.11ax's marketing peak of 9.6 Gbps across four antennas only materializes under lab conditions, where 1-1.5 Gbps sustained is the per-device reality for a modern laptop at close range. The 11m 7s figure is the practical-benchmark case, while the verdict's 10-15 minute real-world band captures the distance and congestion variance that real deployments hit. Compared to WiFi 5 the improvement is meaningful: the same 100 GB at WiFi 5's realistic 400 Mbps takes about 33 minutes, so WiFi 6 cuts the time roughly in half at typical sustained rates.