Feather M4 vs PIC16F17146
Cortex-M4F (SAMD51) at 120 MHz against PIC16F (PIC16F17146) 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
PIC16F17146
PIC16F (PIC16F17146)
- Family
- PIC / dsPIC
- Board
- PIC16F17146 Curiosity Nano
- Clock
- 32 MHz
- float / double
- 32-bit / 32-bit
Typical gap
176×
Feather M4 faster, geometric mean of 25 cells
Biggest win for Feather M4
1,508×
float multiply
Closest cell
30.1×
uint8_t add
Clock for clock
47.1×
Feather M4 needs fewer cycles per op (3.75× clock gap)
Operation by operation
Every cell
How many times faster Feather M4 is than PIC16F17146, operations per second. Blue: Feather M4 ahead. Orange: PIC16F17146 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 30.1× 8.98 M/s · 298 k/s | 32.4× 8.98 M/s · 277 k/s | 138× 8.98 M/s · 64.8 k/s | 113× 7.01 M/s · 62 k/s | 316× 6.36 M/s · 20.1 k/s |
| uint16_t | 36.9× 8.98 M/s · 244 k/s | 36.9× 8.98 M/s · 244 k/s | 354× 8.98 M/s · 25.4 k/s | 259× 6.12 M/s · 23.6 k/s | 196× 5.36 M/s · 27.3 k/s |
| uint32_t | 92.1× 9.71 M/s · 105 k/s | 109× 9.71 M/s · 89 k/s | 980× 9.71 M/s · 9.9 k/s | 708× 6.53 M/s · 9.23 k/s | 573× 6.19 M/s · 10.8 k/s |
| uint64_t | not measured | not measured | not measured | not measured | not measured |
| float | 361× 8.98 M/s · 24.9 k/s | 482× 8.98 M/s · 18.6 k/s | 1,508× 8.98 M/s · 5.95 k/s | 858× 4.73 M/s · 5.51 k/s | 118× 866 k/s · 7.33 k/s |
| double | 48.1× 1.2 M/s · 24.9 k/s | 64.0× 1.19 M/s · 18.6 k/s | 286× 1.7 M/s · 5.95 k/s | 229× 1.26 M/s · 5.51 k/s | 58.1× 425 k/s · 7.33 k/s |