ESP32-S3 vs XIAO MG24
Xtensa LX7 (ESP32-S3) at 240 MHz against Cortex-M33 (EFR32MG24) at 39 MHz, on real hardware, same C kernels, clocks verified.
ESP32-S3
Xtensa LX7 (ESP32-S3)
- Family
- Xtensa
- Board
- ESP32-S3 DevKit
- Clock
- 240 MHz
- float / double
- 32-bit / 64-bit
XIAO MG24
Cortex-M33 (EFR32MG24)
- Family
- Arm Cortex-M
- Board
- XIAO MG24 Sense
- Clock
- 39 MHz
- float / double
- 32-bit / 64-bit
Typical gap
4.48×
ESP32-S3 faster, geometric mean of 30 cells
Biggest win for ESP32-S3
8.22×
double add
Closest cell
1.36×
double divide
Clock for clock
1.37×
XIAO MG24 needs fewer cycles per op (6.15× clock gap)
Operation by operation
Every cell
How many times faster ESP32-S3 is than XIAO MG24, operations per second. Blue: ESP32-S3 ahead. Orange: XIAO MG24 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 4.68× 12.7 M/s · 2.71 M/s | 4.68× 12.7 M/s · 2.71 M/s | 5.03× 12.7 M/s · 2.52 M/s | 4.70× 11.5 M/s · 2.44 M/s | 5.72× 10.9 M/s · 1.92 M/s |
| uint16_t | 4.32× 12.7 M/s · 2.94 M/s | 4.33× 12.7 M/s · 2.93 M/s | 4.33× 12.7 M/s · 2.93 M/s | 4.86× 10.1 M/s · 2.09 M/s | 5.49× 9.72 M/s · 1.77 M/s |
| uint32_t | 4.20× 13.4 M/s · 3.19 M/s | 4.20× 13.4 M/s · 3.19 M/s | 4.57× 13.4 M/s · 2.93 M/s | 4.96× 11 M/s · 2.21 M/s | 5.33× 10.5 M/s · 1.96 M/s |
| uint64_t | 3.34× 7.87 M/s · 2.36 M/s | 3.31× 7.81 M/s · 2.36 M/s | 2.77× 5.45 M/s · 1.97 M/s | 6.31× 1.8 M/s · 285 k/s | 6.12× 1.74 M/s · 285 k/s |
| float | 3.99× 12.7 M/s · 3.18 M/s | 3.99× 12.7 M/s · 3.18 M/s | 3.98× 12.7 M/s · 3.18 M/s | 2.25× 3.48 M/s · 1.54 M/s | 6.13× 1.95 M/s · 318 k/s |
| double | 8.22× 3.04 M/s · 370 k/s | 7.57× 2.79 M/s · 368 k/s | 3.97× 2 M/s · 503 k/s | 1.36× 516 k/s · 379 k/s | 7.41× 1.22 M/s · 165 k/s |