CPUEmbeddedReleased Mar 19, 2019

Qualcomm QCS405

4C/4T · 1.4 GHz

Upper-tier QCS400 smart audio SoC announced by Qualcomm in March 2019, aimed at soundbars and smart speakers with screens. It adds an Adreno 306 GPU for on-screen menus and simple displays, plus the Qualcomm AI Engine on one of its two Hexagon DSPs for on-device voice processing. Audio post-processing scales to 32 channels with up to 12-channel output, alongside Dolby Atmos, DTS:X and aptX Adaptive support. Qualcomm now lists it as not recommended for new designs.

General

Manufacturer: Qualcomm
Model: Qualcomm QCS405
Segment: Embedded
Generation: Qualcomm IoT (QCS/QCM/QRB)
Codename: —
Architecture: ARM64
Microarchitecture: 4× Cortex-A53
Release date: Mar 19, 2019
Price: Search on Amazon

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: Adreno 306
Memory type: —
Memory size: —
ECC memory: —
PCIe: —

Instructions & AI

Instruction extensions: —
NPU: Dual Hexagon V66 DSP (Qualcomm AI Engine)

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.

All Qualcomm CPUs →

Embedded cpus from Qualcomm announced around the same time as the Qualcomm QCS405. Add any of them to your compare list to see the specs side by side.

cpu