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Arduino Uno vs Pi Pico 2W (RISC-V)

ATmega328P at 16 MHz against Hazard3 RV32IMAC (RP2350) at 150 MHz, on real hardware, same C kernels, clocks verified.

Arduino Uno

Arduino Uno

ATmega328P
Family
AVR
Board
Arduino Uno
Clock
16 MHz
float / double
32-bit / 32-bit
Pi Pico 2W (RISC-V)

Pi Pico 2W (RISC-V)

Hazard3 RV32IMAC (RP2350)
Family
RISC-V
Board
Pi Pico 2W (RISC-V)
Clock
150 MHz
float / double
32-bit / 64-bit
Typical gap
35.2×
Pi Pico 2W (RISC-V) faster, geometric mean of 30 cells
Biggest win for Arduino Uno
0.14×
double modulo
Biggest win for Pi Pico 2W (RISC-V)
206×
uint64_t multiply
Clock for clock
3.76×
Pi Pico 2W (RISC-V) needs fewer cycles per op (9.38× clock gap)

Operation by operation

Every cell

How many times faster Arduino Uno is than Pi Pico 2W (RISC-V), operations per second. Blue: Arduino Uno ahead. Orange: Pi Pico 2W (RISC-V) ahead.

AddSubtractMultiplyDivideModulo
uint8_t 1/25.0× 490 k/s · 12.2 M/s 1/27.2× 490 k/s · 13.3 M/s 1/29.7× 448 k/s · 13.3 M/s 1/37.2× 142 k/s · 5.3 M/s 1/37.2× 142 k/s · 5.3 M/s
uint16_t 1/21.7× 522 k/s · 11.3 M/s 1/21.7× 522 k/s · 11.3 M/s 1/25.4× 413 k/s · 10.5 M/s 1/71.2× 69.5 k/s · 4.94 M/s 1/68.9× 69.5 k/s · 4.79 M/s
uint32_t 1/35.7× 342 k/s · 12.2 M/s 1/33.0× 342 k/s · 11.3 M/s 1/83.7× 135 k/s · 11.3 M/s 1/199× 24.8 k/s · 4.94 M/s 1/199× 24.8 k/s · 4.94 M/s
uint64_t 1/110× 74.6 k/s · 8.2 M/s 1/110× 74.6 k/s · 8.2 M/s 1/206× 35.9 k/s · 7.39 M/s 1/53.8× 15.3 k/s · 822 k/s 1/52.2× 15.2 k/s · 794 k/s
float 1/24.7× 98.3 k/s · 2.43 M/s 1/24.6× 98.7 k/s · 2.43 M/s 1/34.2× 87 k/s · 2.98 M/s 1/23.5× 32.2 k/s · 758 k/s 1/11.1× 103 k/s · 1.14 M/s
double 1/12.4× 98.1 k/s · 1.21 M/s 1/12.6× 98.6 k/s · 1.24 M/s 1/7.81× 86.8 k/s · 678 k/s 1/12.2× 32.2 k/s · 394 k/s 1/7.11× 103 k/s · 731 k/s

Where they sit in the fleet

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