Qualcomm
CPUEmbeddedReleased Mar 19, 2019

Qualcomm QCS404

4C/4T · 1.4 GHz

Quad-core, display-less member of Qualcomm's QCS400 smart audio family, announced in March 2019. It steps up from the dual-core QCS403 with four Cortex-A53 cores for smart speakers that run richer voice-assistant and multi-room audio software, while keeping the same Hexagon DSP audio engine, aptX, Dolby and DTS support and mesh Wi-Fi and Bluetooth through companion chips. It has no integrated GPU and anchors Qualcomm's Smart Audio 400 development kit.

General

Manufacturer
Qualcomm
Model
Qualcomm QCS404
Segment
Embedded
Generation
Qualcomm IoT (QCS/QCM/QRB)
Codename
—
Architecture
ARM64
Microarchitecture
4× Cortex-A53
Release date
Mar 19, 2019

Cores & clocks

Cores / threads
4 cores / 4 threads
Base clock
—
Boost clock
1.40 GHz
TDP (design W)
—
Unlocked
✕ No
L2 cache
—
L3 cache
—
Technology (nm)
—

Platform

Socket
—
2-CPU (multi-socket)
✕ No
Integrated GPU
None
Memory type
—
Memory size
—
ECC memory
—
PCIe
—

Instructions & AI

Instruction extensions
—
NPU
Dual Hexagon V66 DSP

OS support

Notes
Qualcomm supports embedded Linux on the QCS400 series through its Smart Audio software stack. Windows, macOS and ChromeOS are not supported, and Ubuntu, Fedora and Arch Linux have no official support.
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