XIAO MG24 vs ESP32
Cortex-M33 (EFR32MG24) at 39 MHz against Xtensa LX6 (ESP32) at 240 MHz, on real hardware, same C kernels, clocks verified.
XIAO MG24
Cortex-M33 (EFR32MG24)
- Family
- Arm Cortex-M
- Board
- XIAO MG24 Sense
- Clock
- 39 MHz
- float / double
- 32-bit / 64-bit
Typical gap
4.13×
ESP32 faster, geometric mean of 30 cells
Biggest win for XIAO MG24
0.83×
double divide
Biggest win for ESP32
8.02×
double add
Clock for clock
1.49×
XIAO MG24 needs fewer cycles per op (6.15× clock gap)
Operation by operation
Every cell
How many times faster XIAO MG24 is than ESP32, operations per second. Blue: XIAO MG24 ahead. Orange: ESP32 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/4.22× 2.71 M/s · 11.4 M/s | 1/4.22× 2.71 M/s · 11.4 M/s | 1/4.53× 2.52 M/s · 11.4 M/s | 1/4.27× 2.44 M/s · 10.4 M/s | 1/5.22× 1.92 M/s · 10 M/s |
| uint16_t | 1/3.89× 2.94 M/s · 11.4 M/s | 1/3.90× 2.93 M/s · 11.4 M/s | 1/3.90× 2.93 M/s · 11.4 M/s | 1/4.46× 2.09 M/s · 9.32 M/s | 1/5.07× 1.77 M/s · 8.97 M/s |
| uint32_t | 1/3.76× 3.19 M/s · 12 M/s | 1/3.76× 3.19 M/s · 12 M/s | 1/4.10× 2.93 M/s · 12 M/s | 1/4.53× 2.21 M/s · 10 M/s | 1/4.89× 1.96 M/s · 9.6 M/s |
| uint64_t | 1/2.99× 2.36 M/s · 7.05 M/s | 1/2.94× 2.36 M/s · 6.94 M/s | 1/2.43× 1.97 M/s · 4.79 M/s | 1/6.14× 285 k/s · 1.75 M/s | 1/5.94× 285 k/s · 1.69 M/s |
| float | 1/3.77× 3.18 M/s · 12 M/s | 1/3.77× 3.18 M/s · 12 M/s | 1/3.77× 3.18 M/s · 12 M/s | 1/2.46× 1.54 M/s · 3.8 M/s | 1/5.44× 318 k/s · 1.73 M/s |
| double | 1/8.02× 370 k/s · 2.96 M/s | 1/7.27× 368 k/s · 2.68 M/s | 1/3.70× 503 k/s · 1.86 M/s | 1/1.21× 379 k/s · 459 k/s | 1/6.71× 165 k/s · 1.11 M/s |