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Pi Pico 2W (RISC-V) vs ESP32

Hazard3 RV32IMAC (RP2350) at 150 MHz against Xtensa LX6 (ESP32) at 240 MHz, on real hardware, same C kernels, clocks verified.

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
ESP32

ESP32

Xtensa LX6 (ESP32)
Family
Xtensa
Board
ESP32
Clock
240 MHz
float / double
32-bit / 64-bit
Typical gap
1.62×
ESP32 faster, geometric mean of 30 cells
Biggest win for Pi Pico 2W (RISC-V)
1.54×
uint64_t multiply
Biggest win for ESP32
5.02×
float divide
Clock for clock
1.01×
ESP32 needs fewer cycles per op (1.60× clock gap)

Operation by operation

Every cell

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

AddSubtractMultiplyDivideModulo
uint8_t 1.07× 12.2 M/s · 11.4 M/s 1.16× 13.3 M/s · 11.4 M/s 1.17× 13.3 M/s · 11.4 M/s 1/1.97× 5.3 M/s · 10.4 M/s 1/1.89× 5.3 M/s · 10 M/s
uint16_t 1/1.01× 11.3 M/s · 11.4 M/s 1/1.01× 11.3 M/s · 11.4 M/s 1/1.09× 10.5 M/s · 11.4 M/s 1/1.88× 4.94 M/s · 9.32 M/s 1/1.87× 4.79 M/s · 8.97 M/s
uint32_t 1.02× 12.2 M/s · 12 M/s 1/1.06× 11.3 M/s · 12 M/s 1/1.06× 11.3 M/s · 12 M/s 1/2.02× 4.94 M/s · 10 M/s 1/1.94× 4.94 M/s · 9.6 M/s
uint64_t 1.16× 8.2 M/s · 7.05 M/s 1.18× 8.2 M/s · 6.94 M/s 1.54× 7.39 M/s · 4.79 M/s 1/2.13× 822 k/s · 1.75 M/s 1/2.13× 794 k/s · 1.69 M/s
float 1/4.93× 2.43 M/s · 12 M/s 1/4.93× 2.43 M/s · 12 M/s 1/4.03× 2.98 M/s · 12 M/s 1/5.02× 758 k/s · 3.8 M/s 1/1.51× 1.14 M/s · 1.73 M/s
double 1/2.44× 1.21 M/s · 2.96 M/s 1/2.16× 1.24 M/s · 2.68 M/s 1/2.75× 678 k/s · 1.86 M/s 1/1.17× 394 k/s · 459 k/s 1/1.51× 731 k/s · 1.11 M/s

Where they sit in the fleet

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