Pi Pico 2W (RISC-V) vs ESP32-S3

Hazard3 RV32IMAC (RP2350) at 150 MHz against Xtensa LX7 (ESP32-S3) at 240 MHz, on real hardware, same C kernels, clocks verified.

Pi Pico 2W (RISC-V)

Hazard3 RV32IMAC (RP2350)

Xtensa LX7 (ESP32-S3)

Typical gap

1.75×

ESP32-S3 faster, geometric mean of 30 cells

Biggest win for Pi Pico 2W (RISC-V)

1.36×

uint64_t multiply

Biggest win for ESP32-S3

5.21×

float add

Clock for clock

1.10×

ESP32-S3 needs fewer cycles per op (1.60× clock gap)

How many times faster Pi Pico 2W (RISC-V) is than ESP32-S3, operations per second. Blue: Pi Pico 2W (RISC-V) ahead. Orange: ESP32-S3 ahead.

	Add	Subtract	Multiply	Divide	Modulo
uint8_t	1/1.04× 12.2 M/s · 12.7 M/s	1.05× 13.3 M/s · 12.7 M/s	1.05× 13.3 M/s · 12.7 M/s	1/2.17× 5.3 M/s · 11.5 M/s	1/2.07× 5.3 M/s · 10.9 M/s
uint16_t	1/1.12× 11.3 M/s · 12.7 M/s	1/1.12× 11.3 M/s · 12.7 M/s	1/1.21× 10.5 M/s · 12.7 M/s	1/2.05× 4.94 M/s · 10.1 M/s	1/2.03× 4.79 M/s · 9.72 M/s
uint32_t	1/1.10× 12.2 M/s · 13.4 M/s	1/1.19× 11.3 M/s · 13.4 M/s	1/1.19× 11.3 M/s · 13.4 M/s	1/2.21× 4.94 M/s · 11 M/s	1/2.12× 4.94 M/s · 10.5 M/s
uint64_t	1.04× 8.2 M/s · 7.87 M/s	1.05× 8.2 M/s · 7.81 M/s	1.36× 7.39 M/s · 5.45 M/s	1/2.19× 822 k/s · 1.8 M/s	1/2.19× 794 k/s · 1.74 M/s
float	1/5.21× 2.43 M/s · 12.7 M/s	1/5.21× 2.43 M/s · 12.7 M/s	1/4.26× 2.98 M/s · 12.7 M/s	1/4.59× 758 k/s · 3.48 M/s	1/1.71× 1.14 M/s · 1.95 M/s
double	1/2.51× 1.21 M/s · 3.04 M/s	1/2.24× 1.24 M/s · 2.79 M/s	1/2.95× 678 k/s · 2 M/s	1/1.31× 394 k/s · 516 k/s	1/1.67× 731 k/s · 1.22 M/s