802.11ac, also known as WiFi 5, operates in the 5GHz frequency band. It supports higher data rates compared to previous standards, specifically due to wider channel bandwidths, more spatial streams, and more efficient data encoding. While it offers improved performance and less interference compared to the 2.4GHz band, it does not include the 60GHz frequency, as that is used by the 802.11ad standard. Similarly, while 802.11ac has improved range and bandwidth over its predecessors, it does not specifically define an improvement in power consumption for end devices.
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