A 1.5GHz quad-core 64-bit ARM Cortex-A72 CPU (~3×performance)
1GB, 2GB, or 4GBof LPDDR4 SDRAM
Dual-band 802.11ac wireless networking
TwoUSB 3.0and two USB 2.0 ports
Dual monitor support, at resolutions up to 4K
VideoCore VI graphics, supporting OpenGL ES 3.x
4Kp60hardware decode of HEVC video
Complete compatibility with earlier Raspberry Pi products
And here it is in the flesh:
We’ve moved from USB micro-B to USB-C for our power connector. This supports an extra 500mA of current, ensuring we have a full 1.2A for downstream USB devices, even under heavy CPU load.
Ethernet and USB
Our Gigabit Ethernet magjack has moved to the top right of the board, from the bottom right, greatly simplifying PCB routing. The 4-pin Power-over-Ethernet (PoE) connector remains in the same location, so Raspberry Pi 4 remains compatible with the PoE HAT.
The Ethernet controller on the main SoC is connected to an external Broadcom PHY over a dedicated RGMII link, providing full throughput. USB is provided via an external VLI controller, connected over a single PCI Express Gen 2 lane, and providing a total of 4Gbps of bandwidth, shared between the four ports.
All three connectors on the right-hand side of the board overhang the edge by an additional millimetre, with the aim of simplifying case design. In all other respects, the connector and mounting hole layout remains the same, ensuring compatibility with existing HATs and other accessories.