
<table>
  <thead>
    <tr>
      <th></th>
      <th>Wi-Fi 4</th>
      <th>Wi-Fi 5</th>
      <th>Wi-Fi 6 / 6E</th>
      <th>Wi-Fi 7</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Launch</td>
      <td>2007</td>
      <td>2013</td>
      <td>2019 / 2021</td>
      <td>2024</td>
    </tr>
    <tr>
      <td>IEEE Standard</td>
      <td>802.11n</td>
      <td>802.11ac</td>
      <td>802.11ax</td>
      <td>802.11be</td>
    </tr>
    <tr>
      <td>Max rate</td>
      <td>1.2 Gbps</td>
      <td>3.5 Gbps</td>
      <td>9.6 Gbps</td>
      <td>46 Gbps</td>
    </tr>
    <tr>
      <td>Bands</td>
      <td>2.4 GHz and 5 GHz</td>
      <td>5GHz</td>
      <td>2.4 and 5 GHz / 6 GHz</td>
      <td>1-7.25 GHz</td>
    </tr>
    <tr>
      <td>Security</td>
      <td>WPA 2</td>
      <td>WPA 2</td>
      <td>WPA 3</td>
      <td>WPA 3</td>
    </tr>
    <tr>
      <td>Channel size (MHz)</td>
      <td>20, 40</td>
      <td>20,40,80, 80+80, 160</td>
      <td>20,40,80, 80+80, 160</td>
      <td>Up to 320</td>
    </tr>
    <tr>
      <td>Modulation</td>
      <td>64-QAM, OFDM</td>
      <td>256-QAM, OFDM</td>
      <td>1024-QAM, OFDMA</td>
      <td>4096-QAM, OFDMA</td>
    </tr>
    <tr>
      <td>MIMO</td>
      <td>4x4 MIMO</td>
      <td>4x4 MIMO, DL MU-MIMO</td>
      <td>8x8 UL/DL MU-MIMO</td>
      <td>16x16 MU-MIMO</td>
    </tr>
  </tbody>
</table>
<h2>Wi-Fi 6 vs Wi-Fi 5</h2>
<p>The current generation is <strong>Wifi 5</strong>, or <strong>IEEE 802.11ac</strong>. The next generation is <strong>Wifi 6</strong>, or <strong>IEEE 802.11ax</strong>.</p>
<ul>
  <li>Wifi 6 is faster than Wifi 5, but may not be that obvious.</li>
  <li>The true difference is that Wifi 6 can support more devices
    <ul>
      <li>MU-MIMO, or "multi-user, multiple input, multiple output", is upgraded from 4 devices to 8 devices</li>
      <li>OFDMA, or "Orthogonal Frequency Division Multiple Access", allows one transmission to deliver data to multiple devices at once.</li>
    </ul>
  </li>
  <li>Improve battery life, especially for low-power, IoT devices.</li>
  <li>Better security: WPA3</li>
</ul>
<h2>Wi-Fi 6 vs Wi-Fi 6E</h2>
<ul>
  <li><strong>Wi-Fi 6</strong>: 2.4GHz and 5GHz</li>
  <li><strong>Wi-Fi 6E</strong>: add 6GHz band, providing 5x more channels (14 80MHz channels and 7 160MHz channels)</li>
</ul>
<h2>Usage</h2>
<p>You would need BOTH Wifi 6 routers AND Wifi 6 devices to take full advantages of it.</p>
<p>Devices: Some motherboards have Wifi chips built-in, otherwise you can buy a PCIe Wifi card or USB Wifi Adaptor.</p>


Wi-Fi

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	Wi-Fi 4	Wi-Fi 5	Wi-Fi 6 / 6E	Wi-Fi 7
Launch	2007	2013	2019 / 2021	2024
IEEE Standard	802.11n	802.11ac	802.11ax	802.11be
Max rate	1.2 Gbps	3.5 Gbps	9.6 Gbps	46 Gbps
Bands	2.4 GHz and 5 GHz	5GHz	2.4 and 5 GHz / 6 GHz	1-7.25 GHz
Security	WPA 2	WPA 2	WPA 3	WPA 3
Channel size (MHz)	20, 40	20,40,80, 80+80, 160	20,40,80, 80+80, 160	Up to 320
Modulation	64-QAM, OFDM	256-QAM, OFDM	1024-QAM, OFDMA	4096-QAM, OFDMA
MIMO	4x4 MIMO	4x4 MIMO, DL MU-MIMO	8x8 UL/DL MU-MIMO	16x16 MU-MIMO