NXP IMXRT1062DVJ6A ARM Cortex-M7 at 600 MHz with FPU (32 bit float
and 64 bit double precision) Cortex-M7 is a dual-issue superscaler
processor, meaning it can execute 2 instructions per clock cycle.
Note: executing 2 simultaneously instructions depends upon the
compiler ordering instructions and registers.
16 MB up to PSRAM (QSPI Memory Expansion, ready to solder 1 or 2 chips such as IPS6404LSQ or ESP PSRAM64H on board) https://www.pjrc.com/store/psram.html
yes Ethernet 10/100 Mbit (6 pin on board header). Teensy 4.1 contains an Ethernet controller and Ethernet PHY chip. To connect an Ethernet cable, use kit https://www.pjrc.com/store/ethernet_kit.html
16 bytes of memory are located within the RTC. If a coin cell is
connected to VBAT, contents of this memory is preserved while power
is off. This memory is accessed as 32 bit registers LPGPR0-LPGPR3.