When we buy some network products such as routers, or, when we buy those popular electronics products such as smart phone, tablet, or IoT products. we might only focus the processor speed, the memory size and storage size.
Part of buyers might care about the network speed. The common way might be if you see the product description gives the information such as “support 802.11 xxx”, OK, then you might say, It is OK, it has wireless feature.
However, how many people read the 802.11 protocol numbers carefully and researched what they are ?
What is 802.11 ?
802.11 is a set of protocols for implementing Wireless LAN communication in the 900 MHz and 2.4 / 3.6 / 5 / 60 GHz frequency bands. We know our home routers normally use 2.4 and 5 GHz.
What are 802.11 protocols we often meet ?
In our daily life, we often buy some network products which has different 802.11 wireless protocols: 802.11 a / b / g / n. Seems 802.11 was the newest one with highest speed in passed years. However, we might not realized the 802.11 ac protocol has already been the popular wireless protocol.
How 802.11 ac vs 802.11 n ?
Since 802.11 n was the best one before, then let’s see how better 802.11 ad than 802.11 n.
Here we simply use the popular image which could be found on internet everywhere, such as forbes. We can see the speed simply: 802.11 ac could be up to 1300 Mbps, but 802.11 n only could be up to 450 Mbps.