Feather M4 vs Pi Pico 2W
Cortex-M4F (SAMD51) at 120 MHz against Cortex-M33 (RP2350) at 150 MHz, on real hardware, same C kernels, clocks verified.
Feather M4
Cortex-M4F (SAMD51)
- Family
- Arm Cortex-M
- Board
- Feather M4 Express
- Clock
- 120 MHz
- float / double
- 32-bit / 64-bit
Pi Pico 2W
Cortex-M33 (RP2350)
- Family
- Arm Cortex-M
- Board
- Pi Pico 2W
- Clock
- 150 MHz
- float / double
- 32-bit / 64-bit
Typical gap
1.46×
Pi Pico 2W faster, geometric mean of 30 cells
Biggest win for Feather M4
2.60×
uint64_t divide
Biggest win for Pi Pico 2W
4.78×
double subtract
Clock for clock
1.17×
Pi Pico 2W needs fewer cycles per op (1.25× clock gap)
Operation by operation
Every cell
How many times faster Feather M4 is than Pi Pico 2W, operations per second. Blue: Feather M4 ahead. Orange: Pi Pico 2W ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/1.36× 8.98 M/s · 12.2 M/s | 1/1.36× 8.98 M/s · 12.2 M/s | 1/1.26× 8.98 M/s · 11.3 M/s | 1/1.35× 7.01 M/s · 9.49 M/s | 1/1.25× 6.36 M/s · 7.97 M/s |
| uint16_t | 1/1.37× 8.98 M/s · 12.3 M/s | 1/1.36× 8.98 M/s · 12.2 M/s | 1/1.37× 8.98 M/s · 12.3 M/s | 1/1.42× 6.12 M/s · 8.7 M/s | 1/1.38× 5.36 M/s · 7.4 M/s |
| uint32_t | 1/1.37× 9.71 M/s · 13.3 M/s | 1/1.38× 9.71 M/s · 13.4 M/s | 1/1.26× 9.71 M/s · 12.3 M/s | 1/1.41× 6.53 M/s · 9.2 M/s | 1/1.32× 6.19 M/s · 8.19 M/s |
| uint64_t | 1/1.59× 6.19 M/s · 9.84 M/s | 1/1.59× 6.19 M/s · 9.84 M/s | 1/1.46× 5.61 M/s · 8.19 M/s | 2.60× 885 k/s · 340 k/s | 2.60× 885 k/s · 340 k/s |
| float | 1/1.49× 8.98 M/s · 13.4 M/s | 1/1.49× 8.98 M/s · 13.4 M/s | 1/1.49× 8.98 M/s · 13.4 M/s | 1/1.36× 4.73 M/s · 6.43 M/s | 1/2.01× 866 k/s · 1.74 M/s |
| double | 1/4.77× 1.2 M/s · 5.71 M/s | 1/4.78× 1.19 M/s · 5.69 M/s | 1/2.03× 1.7 M/s · 3.46 M/s | 1/1.67× 1.26 M/s · 2.1 M/s | 1/2.86× 425 k/s · 1.22 M/s |