A new version of the Raspberry Pi 4 Model B has been (quietly) introduced. The key difference? It now uses a dual-RAM configuration. The Raspberry Pi 4 Model B Rev 1.5 adopts a dual-RAM configuration to ‘improve supply chain flexibility’ and manufacturing efficiency, per a company product change notice document. Earlier versions of the Raspberry Pi 4 (v1.1 through 1.4) use a single RAM chip on the top of the board. This new revision adds a second LPDDR4 chip to the underside, with some passive components also moved over. Why use dual-RAM? Even those living under rocks will know that […]