CentOS Stream vs QNX Neutrino RTOS

CentOS Stream

6.8 #6 in Operating Systems

About CentOS Stream

QNX Neutrino RTOS

5.4 #44 in Operating Systems

About QNX Neutrino RTOS
CentOS StreamQNX Neutrino RTOS
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
PlatformsLinux, self-hosted—
Free planYesNo
Device typesServers, workstations, cloud instances, and containersEmbedded systems; supported applications include medical instruments, routers, telematics devices, process-control systems and air-traffic-control systems
CPU architecturesCentOS Stream 10: AMD/Intel 64-bit (x86_64_v3), ARM 64-bit (ARMv8.0-A), IBM Power (POWER9), IBM Z (z14)MIPS, PowerPC, SH-4, ARM, StrongARM, XScale, x86
Support lifecycleCentOS Stream 10 maintained until 2030; roughly five-year lifecycle. CentOS Stream 9 end-of-life: 2027-05-31.Foundational QNX products typically reach End of Sale and Standard Support 8 years after commercial release; product-specific lifecycle varies
Built-in managementDNF repositories and package managementQNX Software Center for downloading and managing QNX SDP versions 7.x and 8.x
App compatibilityBaseOS and AppStream repositories; RPM packages; Xwayland compatibility layer for legacy X11 applicationsPOSIX API support; portability and migration from Linux, Unix and other POSIX programs
Deployment modelsPhysical-device installation media; cloud images; container images; Vagrant boxesEmbedded target hardware; runtime virtual machine availability is documented for QNX Neutrino

Both are listed in Best Operating Systems. On Everything Xiaomi, CentOS Stream scores higher on our published basis.