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PIC24FJ64GU205 vs Feather M4

PIC24F (PIC24FJ64GU205) at 32 MHz against Cortex-M4F (SAMD51) at 120 MHz, on real hardware, same C kernels, clocks verified.

PIC24FJ64GU205 Curiosity Nano

PIC24FJ64GU205

PIC24F (PIC24FJ64GU205)
Family
PIC / dsPIC
Board
PIC24FJ64GU205 Curiosity Nano
Clock
32 MHz
float / double
32-bit / 32-bit
Feather M4 Express

Feather M4

Cortex-M4F (SAMD51)
Family
Arm Cortex-M
Board
Feather M4 Express
Clock
120 MHz
float / double
32-bit / 64-bit
Typical gap
20.2×
Feather M4 faster, geometric mean of 30 cells
Biggest win for PIC24FJ64GU205
0.22×
double modulo
Biggest win for Feather M4
405×
uint64_t 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 PIC24FJ64GU205 is than Feather M4, operations per second. Blue: PIC24FJ64GU205 ahead. Orange: Feather M4 ahead.

AddSubtractMultiplyDivideModulo
uint8_t 1/6.30× 1.43 M/s · 8.98 M/s 1/6.30× 1.43 M/s · 8.98 M/s 1/6.86× 1.31 M/s · 8.98 M/s 1/14.1× 497 k/s · 7.01 M/s 1/12.8× 497 k/s · 6.36 M/s
uint16_t 1/7.84× 1.15 M/s · 8.98 M/s 1/7.84× 1.15 M/s · 8.98 M/s 1/7.84× 1.15 M/s · 8.98 M/s 1/12.6× 485 k/s · 6.12 M/s 1/11.1× 485 k/s · 5.36 M/s
uint32_t 1/10.9× 890 k/s · 9.71 M/s 1/10.9× 890 k/s · 9.71 M/s 1/15.1× 641 k/s · 9.71 M/s 1/190× 34.3 k/s · 6.53 M/s 1/183× 33.8 k/s · 6.19 M/s
uint64_t 1/10.8× 572 k/s · 6.19 M/s 1/9.28× 668 k/s · 6.19 M/s 1/42.2× 133 k/s · 5.61 M/s 1/405× 2.19 k/s · 885 k/s 1/405× 2.18 k/s · 885 k/s
float 1/67.6× 133 k/s · 8.98 M/s 1/73.8× 122 k/s · 8.98 M/s 1/53.6× 168 k/s · 8.98 M/s 1/60.4× 78.2 k/s · 4.73 M/s 1/9.00× 96.3 k/s · 866 k/s
double 1/9.24× 130 k/s · 1.2 M/s 1/10.0× 119 k/s · 1.19 M/s 1/10.5× 162 k/s · 1.7 M/s 1/16.3× 77.1 k/s · 1.26 M/s 1/4.50× 94.5 k/s · 425 k/s

Where they sit in the fleet

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