Raspberry Pi 4 on sale now from $35 - Raspberry Pi
https://www.raspberrypi.org/blog/raspberry-pi-4-on-sale-now-from-35/
A 1.5GHz quad-core 64-bit ARM Cortex-A72 CPU (~3× performance)
1GB, 2GB, or 4GB of LPDDR4 SDRAM
Full-throughput Gigabit Ethernet
Dual-band 802.11ac wireless networking
Bluetooth 5.0
Two USB 3.0 and two USB 2.0 ports
Dual monitor support, at resolutions up to 4K
VideoCore VI graphics, supporting OpenGL ES 3.x
4Kp60 hardware decode of HEVC video
Complete compatibility with earlier Raspberry Pi products