Pi Pico vs Feather M4
Cortex-M0+ (RP2040) at 200 MHz against Cortex-M4F (SAMD51) at 120 MHz, on real hardware, same C kernels, clocks verified.
Pi Pico
Cortex-M0+ (RP2040)
- Family
- Arm Cortex-M
- Board
- Pi Pico
- Clock
- 200 MHz
- float / double
- 32-bit / 64-bit
Feather M4
Cortex-M4F (SAMD51)
- Family
- Arm Cortex-M
- Board
- Feather M4 Express
- Clock
- 120 MHz
- float / double
- 32-bit / 64-bit
Typical gap
1.09×
Feather M4 faster, geometric mean of 30 cells
Biggest win for Pi Pico
2.27×
uint64_t modulo
Biggest win for Feather M4
4.48×
float subtract
Clock for clock
1.82×
Feather M4 needs fewer cycles per op (1.67× clock gap)
Operation by operation
Every cell
How many times faster Pi Pico is than Feather M4, operations per second. Blue: Pi Pico ahead. Orange: Feather M4 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1.51× 13.5 M/s · 8.98 M/s | 1.62× 14.5 M/s · 8.98 M/s | 1.41× 12.7 M/s · 8.98 M/s | 1/1.47× 4.78 M/s · 7.01 M/s | 1/1.33× 4.78 M/s · 6.36 M/s |
| uint16_t | 1.19× 10.7 M/s · 8.98 M/s | 1.19× 10.7 M/s · 8.98 M/s | 1.25× 11.3 M/s · 8.98 M/s | 1/1.28× 4.77 M/s · 6.12 M/s | 1/1.12× 4.77 M/s · 5.36 M/s |
| uint32_t | 1.16× 11.3 M/s · 9.71 M/s | 1.16× 11.3 M/s · 9.71 M/s | 1.23× 11.9 M/s · 9.71 M/s | 1/1.27× 5.14 M/s · 6.53 M/s | 1/1.20× 5.14 M/s · 6.19 M/s |
| uint64_t | 1.04× 6.44 M/s · 6.19 M/s | 1/1.02× 6.05 M/s · 6.19 M/s | 1/1.79× 3.13 M/s · 5.61 M/s | 2.27× 2.01 M/s · 885 k/s | 2.27× 2.01 M/s · 885 k/s |
| float | 1/4.16× 2.16 M/s · 8.98 M/s | 1/4.48× 2 M/s · 8.98 M/s | 1/3.66× 2.45 M/s · 8.98 M/s | 1/2.35× 2.01 M/s · 4.73 M/s | 1.32× 1.14 M/s · 866 k/s |
| double | 1.34× 1.6 M/s · 1.2 M/s | 1.24× 1.48 M/s · 1.19 M/s | 1/1.67× 1.02 M/s · 1.7 M/s | 1/1.36× 926 k/s · 1.26 M/s | 1.72× 734 k/s · 425 k/s |