Raspberry Pi Pico 2 microcontroller board (with pre-soldered header (color-coded)) is powered by Official RP2350 microcontroller chip, with unique dual-core and dual-architecture design, running up to 150 MHz, embedd ed 520KB of SRAM and 4MB of on-board Flash memory, as well as 26x multi-function GPIO pins.
For software development, either Rasp Pi’s C/C++ SDK, or the MicroPython is available. There’re also complete development resources and tutorials to help you get started easily, and integrate it into end products quickly.

Comparison between New and Old Versions of Raspberry Pi Pico:

Features

Official RP2350 microcontroller chip
Adopts unique dual-core and dual-architecture design:
—dual-core Arm Cortex-M33 processor and dual-core Hazard3 RISC-V processor, flexible clock running up to 150 MHz
—The unique dual-core, dual-architecture capability of RP2350 allows users to choose between a pair of industry-standard Arm Cortex-M33 cores, and a pair of open-hardware Hazard3 cores, giving developers a chance to experiment with the RISC-V architecture in a stable, well-supported environment

520KB of SRAM, and 4MB of on-board Flash memory
Castellated module allows soldering direct to carrier boards
USB 1.1 with device and host support
Low-power sleep and dormant modes
Drag-and-drop programming using mass storage over USB
26 × multi-function GPIO pins, configurable pin function, allows flexible development and integration
2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 24 × controllable PWM channels
Temperature sensor
12 × Programmable I/O (PIO) state machines for custom peripheral support