powful cputhe cpu of the raspberry pi 4 model b adopts the latest arm cortex-a72 architecture, which is also used in high-performance smartphones, and has evolved into a real pc.the operating clock has been changed from pi3's 1.2ghz to 1.5ghz, and the speed has become a different dimension with the updated architecture.
video output/gputhe on-board gpu of the raspberry pi 4 supports 4kp@60 and newly supports h.265 decoding, opengl es 3.0, etc.as for the video output, two micro hdmis with smaller connectors are installed, and the raspberry pi 4 also supports dual screen output.
usb 3.0with a new soc, the speed of the raspberry pi 4 around i/o has been improved, and finally usb 3.0 is supported.usb boot is faster and more convenient.
network&bluetoothgigabit ethernet (wired lan) has also been significantly speeded up from 300mbps of pi 3b + to 1000mbps (logical value).in addition, bluetooth supported version has been upgraded to 5.0, and the transfer speed of pi 4 has been doubled.
power input connectorthe power input connector of the raspberry pi 4 has been changed to usb type c. it is easier to use than micro usb and can supply a larger current reliably.the power requirement of raspberry pi 4 model b is 5v 3.0a, which is higher than the previous model.
