The Raspberry Pi 4 Model B (Pi4B) is the first of a new generation of Raspberry Pi computers supporting more RAM and with significantly enhanced CPU, GPU and I/O performance in a similar form factor, power envelope and cost as the previous generation Raspberry Pi 3B+. The Pi4B is available with 1, 2, 4, or 8 gigabytes of LPDDR4 SDRAM. 5 Release 1.1