Aim for the tests is to check maximum wireless speeds that can be achieved with 2.4GHz and 5GHz mode in typical home scenarios. I had two routers to do these tests, viz DLink-816 and NetGear R6800.
The result were quite interesting considering that the same configuration of 2.4GHz leads to drastically different speeds on different wifi routers. Thus selecting a good wifi router is key.
Test tool: iperf (2.0.5)
Laptop1: Ubuntu 18.04 (Huawei Matebook X Pro, i7 8550U)
Laptop2: Ubuntun 16.04 (HP EliteBook 840 G3, i7)
Wifi Router: Dlink 816
Wifi Router: NetGear R6800 AC1900 Dual Band Gigabit Wireless Router
- Max CPU usage of iperf on sender & receiver (laptop2) < 20%
- The performance of 2.4GHz differed widely between Netgear and Dlink. Netgear hugely out-performed Dlink.
- The performance of 5GHz differed widely between Netgear and Dlink. Netgear hugely out-performed Dlink. Netgear supports advanced 5GHz modes and thus may have produced better results.
- The aim of this experiment was to check if the Netgear can operate at 1Gbps rate with regular (highend) laptops. The best i can achieve was 450Mbps. Netgear advertises 1900 Mbps but i guess these speeds are achievable only with special purpose client devices which supports multiple wifi data streams in parallel.