Dragonwing Q4 Series

The Qualcomm Dragonwing Q4 series is for handhelds, smart retail, edge cameras, healthcare devices, and small robots. Qualcomm’s family comparison lists the series at 1.1 TOPS. The active parts are octa-core Cortex-A78, Cortex-A76, and Cortex-A73 designs, and the top of the series adds Wi-Fi 6E with optional 5G.

General Specifications

Specs
PartCPUGPUMemoryProcess
Q-43902x Cortex-A78 up to 2.2 GHz
6x Cortex-A55
Adreno 613 @ 738 MHzLPDDR5 @ 2750 MHz and LPDDR4x @ 2100 MHz, 2x164 nm
QCM4490 / QCS44902x Cortex-A78 up to 2.4 GHz
6x Cortex-A55
Adreno 613 @ 1.01 GHzLPDDR5 @ 3200 MHz and LPDDR4x @ 2100 MHz, 2x164 nm
QCS4290 / QCM42904x Cortex-A73 up to 2.0 GHz
4x Cortex-A53
Adreno 610LPDDR4x @ 1866 MHz (2x16)
LPDDR3 @ 933 MHz (1x32)
11 nm
QCS4102x Cortex-A76 up to 2.2 GHz
6x Cortex-A55
Adreno 612LPDDR4x @ 1804 MHz11 nm
QRB42104x Cortex-A73 @ 2.0 GHz
4x Cortex-A53 @ 1.8 GHz
Adreno 610 @ 950 MHzLPDDR4x @ 1866 MHz (2x16)
LPDDR3 @ 933 MHz (1x32)
11 nm

Variant Differences:

  • Q-4390: Android. Wi-Fi 6E 2x2 and Bluetooth 5.2. One PCIe Gen3 lane and USB 3.1. One display.
  • QCS4490: Same class as Q-4390 with a higher CPU and GPU clock. Android, Wi-Fi 6E, Bluetooth 5.2. 7-year longevity.
  • QCM4490: Modem SKU of QCS4490.
  • QCS4290: Android and Linux. Wi-Fi 5, Wi-Fi 4, and Wi-Fi 6-ready, Bluetooth 5.1. Hexagon 683 with dual HVX. Pin compatible with QCS2290. 3rd gen AI Engine.
  • QCM4290: Same Cortex-A73 platform as QCS4290, with an integrated modem. Bluetooth 5.0.
  • QCS410: Android and Linux. Wi-Fi 5 and Wi-Fi 4 at 1x1, Bluetooth 5.0. USB 2.0, USB 3.1, and RGMII Ethernet. Hexagon 685. 10-year longevity. Same Cortex-A76 cluster as QCS610 in the Q6 series.
  • QRB4210: Robotics part. Linux. Wi-Fi 4 1x1 and Bluetooth 5.0. Hexagon dual HVX at 1.0 GHz. About 1 TOPS.

Linux Support

Mainline kernel

  • QCS4290 / QCM4290 / QRB4210: Listed on the Kamorta matrix, with SM6115.
  • Q-4390, QCS4490, QCM4490, QCS410: No mainline status matrix lists these SKUs. The related SM4450 matrix does not name the 4490 or Q-4390 parts.

Vendor operating systems are Android and Linux on the Cortex-A73 and Cortex-A76 parts. Q-4390, QCS4490, and QCM4490 are listed as Android.


Resources


Boards with Dragonwing Q4

List of boards: