Feather M4 vs PIC24FJ64GU205
Cortex-M4F (SAMD51) at 120 MHz against PIC24F (PIC24FJ64GU205) at 32 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
PIC24FJ64GU205
PIC24F (PIC24FJ64GU205)
- Family
- PIC / dsPIC
- Board
- PIC24FJ64GU205 Curiosity Nano
- Clock
- 32 MHz
- float / double
- 32-bit / 32-bit
Typical gap
20.2×
Feather M4 faster, geometric mean of 30 cells
Biggest win for Feather M4
405×
uint64_t modulo
Closest cell
4.50×
double modulo
Clock for clock
5.39×
Feather M4 needs fewer cycles per op (3.75× clock gap)
Operation by operation
Every cell
How many times faster Feather M4 is than PIC24FJ64GU205, operations per second. Blue: Feather M4 ahead. Orange: PIC24FJ64GU205 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 6.30× 8.98 M/s · 1.43 M/s | 6.30× 8.98 M/s · 1.43 M/s | 6.86× 8.98 M/s · 1.31 M/s | 14.1× 7.01 M/s · 497 k/s | 12.8× 6.36 M/s · 497 k/s |
| uint16_t | 7.84× 8.98 M/s · 1.15 M/s | 7.84× 8.98 M/s · 1.15 M/s | 7.84× 8.98 M/s · 1.15 M/s | 12.6× 6.12 M/s · 485 k/s | 11.1× 5.36 M/s · 485 k/s |
| uint32_t | 10.9× 9.71 M/s · 890 k/s | 10.9× 9.71 M/s · 890 k/s | 15.1× 9.71 M/s · 641 k/s | 190× 6.53 M/s · 34.3 k/s | 183× 6.19 M/s · 33.8 k/s |
| uint64_t | 10.8× 6.19 M/s · 572 k/s | 9.28× 6.19 M/s · 668 k/s | 42.2× 5.61 M/s · 133 k/s | 405× 885 k/s · 2.19 k/s | 405× 885 k/s · 2.18 k/s |
| float | 67.6× 8.98 M/s · 133 k/s | 73.8× 8.98 M/s · 122 k/s | 53.6× 8.98 M/s · 168 k/s | 60.4× 4.73 M/s · 78.2 k/s | 9.00× 866 k/s · 96.3 k/s |
| double | 9.24× 1.2 M/s · 130 k/s | 10.0× 1.19 M/s · 119 k/s | 10.5× 1.7 M/s · 162 k/s | 16.3× 1.26 M/s · 77.1 k/s | 4.50× 425 k/s · 94.5 k/s |