Raspberry Pi Compute Module 5 review: the new $45+ module is a compact Pi 5 with more power than a CM4, but whose cooling fan doesn't work with a passive cooler
The Raspberry Pi 5 now in a Compute Module 4 sized package — Tom's Hardware Verdict
Context & Ripple Effects
Raspberry Pi 5 established the higher-performance platform with its Cortex-A76 processor, expanded memory options and dual 4K output in its 2023 launch. The Compute Module 5 carries that platform into the compact compute-module category previously served by the CM4.
Related coverage also shows the same Pi 5 platform being repackaged into products such as the keyboard-form Raspberry Pi 500. This matters because the module form shifts the integration burden to builders, where thermal compatibility is part of the finished product rather than a standalone accessory choice.
First-order effects
- Embedded-system builders gain a roughly $45-and-up route to Pi 5-class processing in a CM4-sized module, while the CM4 becomes the lower-performance incumbent.
- The reported fan/passive-cooler incompatibility makes thermal configuration an immediate design constraint for CM5 deployments that need either active or passive cooling.
Second-order effects
- Carrier-board and enclosure designers must validate cooling combinations around the CM5 rather than assuming existing passive solutions will work with the module's fan arrangement.
- The trade-off gives integrators a clearer choice between the module's added performance and the space, noise, and mechanical requirements of an active thermal design.
Third-order effects
- If Raspberry Pi continues moving its current platform across boards, keyboards, and modules, differentiation will increasingly come from packaging and integration rather than the underlying compute alone.
- Thermal engineering becomes a durable product constraint for compact Pi 5-based systems: performance upgrades may be limited by enclosure and cooling design as much as by module price.
The trend: Raspberry Pi is extending one higher-performance compute platform across more form factors, shifting more system-level trade-offs—especially cooling—to integrators.