The QCA9880 and QCA9882 are wireless local area network (WLAN) chips from Qualcomm that support Wi-Fi connections. They differ in several ways, including the following:
Supported frequency bands: QCA9880 supports two frequency bands of 2.4 GHz and 5 GHz, while QCA9882 supports three frequency bands of 2.4 GHz, 5 GHz and 60 GHz.
Supported protocols: QCA9880 supports 802.11a/b/g/n protocols, while QCA9882 supports 802.11a/b/g/n/ac protocols, which are more advanced and comprehensive.
Maximum Speed: The maximum wireless transmission speed of QCA9880 is 1300 Mbps, while the maximum wireless transmission speed of QCA9882 is 1700 Mbps, which has a higher speed.
Antenna interface: QCA9880 and QCA9882 are slightly different in antenna interface, QCA9880 supports 3×3 antenna interface, while QCA9882 supports 2×2 antenna interface.
QCA9880 solution:
802.11a: Supports the 5 GHz frequency band with a maximum transmission rate of 54 Mbps;
802.11b: Supports 2.4 GHz frequency band with a maximum transmission rate of 11 Mbps;
802.11g: Supports the 2.4 GHz frequency band with a maximum transmission rate of 54 Mbps;
802.11n: Supports 2.4 GHz and 5 GHz frequency bands, with a maximum transmission rate of 450 Mbps;
3×3 antenna configuration is supported.
QCA9882 solution:
802.11a: Supports the 5 GHz frequency band with a maximum transmission rate of 54 Mbps;
802.11b: Supports 2.4 GHz frequency band with a maximum transmission rate of 11 Mbps;
802.11g: Supports the 2.4 GHz frequency band with a maximum transmission rate of 54 Mbps;
802.11n: Supports 2.4 GHz and 5 GHz frequency bands, with a maximum transmission rate of 600 Mbps;
802.11ac: supports 2.4 GHz and 5 GHz frequency bands, with a maximum transmission rate of 1300 Mbps;
Supports 2×2 antenna configuration.
QCA9880, QCA9882 and MT7915 are wireless local area network (WLAN) chips produced by two different chip manufacturers, and there are some differences between them:
Vendor: The QCA9880 and QCA9882 are made by Qualcomm, while the MT7915 is made by MediaTek.
Supported wireless standards: The wireless standards supported by QCA9880 and QCA9882 include 802.11a/b/g/n, and QCA9882 also supports 802.11ac standard. The MT7915 supports 802.11a/b/g/n/ac/ax standards, including the latest Wi-Fi 6E (802.11ax) standard.
Maximum transfer rate: QCA9880 and QCA9882 have a maximum transfer rate of 450 Mbps and 600 Mbps, respectively, while MT7915 supports higher transfer rates, depending on different versions and configurations of the chip.
Antenna configuration: QCA9880 supports 3×3 antenna configuration, QCA9882 supports 2×2 antenna configuration, and MT7915 supports multiple antenna configurations, including 2×2, 3×3 and 4×4 etc.
Power consumption and performance characteristics: Different chips may have differences in power consumption, performance characteristics, integration, etc., depending on different versions and configurations of the chips.
Ecosystem and software support: Different chip manufacturers may provide different ecosystems and software support, including development tools, software development kit (SDK), drivers, etc.
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