dsPIC33AK512 vs Feather M4
dsPIC33A (dsPIC33AK512MPS506) at 200 MHz against Cortex-M4F (SAMD51) at 120 MHz, on real hardware, same C kernels, clocks verified.
dsPIC33AK512
dsPIC33A (dsPIC33AK512MPS506)
- Family
- PIC / dsPIC
- Board
- dsPIC33AK512MPS506 Curiosity Nano
- Clock
- 200 MHz
- float / double
- 32-bit / 32-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
1.46×
dsPIC33AK512 faster, geometric mean of 30 cells
Biggest win for dsPIC33AK512
7.12×
double subtract
Biggest win for Feather M4
8.92×
uint64_t divide
Clock for clock
1.14×
Feather M4 needs fewer cycles per op (1.67× clock gap)
Operation by operation
Every cell
How many times faster dsPIC33AK512 is than Feather M4, operations per second. Blue: dsPIC33AK512 ahead. Orange: Feather M4 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1.92× 17.3 M/s · 8.98 M/s | 1.92× 17.3 M/s · 8.98 M/s | 1.92× 17.3 M/s · 8.98 M/s | 1.32× 9.26 M/s · 7.01 M/s | 1.23× 7.81 M/s · 6.36 M/s |
| uint16_t | 1.43× 12.8 M/s · 8.98 M/s | 1.43× 12.8 M/s · 8.98 M/s | 1.77× 15.9 M/s · 8.98 M/s | 1.51× 9.26 M/s · 6.12 M/s | 1.46× 7.81 M/s · 5.36 M/s |
| uint32_t | 1.05× 10.2 M/s · 9.71 M/s | 1.05× 10.2 M/s · 9.71 M/s | 1.24× 12.1 M/s · 9.71 M/s | 1.15× 7.52 M/s · 6.53 M/s | 1.09× 6.76 M/s · 6.19 M/s |
| uint64_t | 1.57× 9.71 M/s · 6.19 M/s | 1.57× 9.71 M/s · 6.19 M/s | 1.09× 6.14 M/s · 5.61 M/s | 1/8.92× 99.2 k/s · 885 k/s | 1/8.87× 99.8 k/s · 885 k/s |
| float | 1/1.06× 8.48 M/s · 8.98 M/s | 1/1.06× 8.48 M/s · 8.98 M/s | 1/1.06× 8.48 M/s · 8.98 M/s | 1.34× 6.33 M/s · 4.73 M/s | 2.28× 1.98 M/s · 866 k/s |
| double | 7.08× 8.48 M/s · 1.2 M/s | 7.12× 8.48 M/s · 1.19 M/s | 4.98× 8.48 M/s · 1.7 M/s | 5.03× 6.33 M/s · 1.26 M/s | 4.65× 1.98 M/s · 425 k/s |