ESP32 vs Nucleo G474RE
Xtensa LX6 (ESP32) at 240 MHz against Cortex-M4F (STM32G474) at 170 MHz, on real hardware, same C kernels, clocks verified.
Nucleo G474RE
Cortex-M4F (STM32G474)
- Family
- Arm Cortex-M
- Board
- Nucleo G474RE
- Clock
- 170 MHz
- float / double
- 32-bit / 64-bit
Typical gap
1.03×
ESP32 faster, geometric mean of 30 cells
Biggest win for ESP32
1.88×
double add
Biggest win for Nucleo G474RE
3.64×
double divide
Clock for clock
1.37×
Nucleo G474RE needs fewer cycles per op (1.41× clock gap)
Operation by operation
Every cell
How many times faster ESP32 is than Nucleo G474RE, operations per second. Blue: ESP32 ahead. Orange: Nucleo G474RE ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/1.03× 11.4 M/s · 11.7 M/s | 1/1.03× 11.4 M/s · 11.7 M/s | 1/1.03× 11.4 M/s · 11.7 M/s | 1.17× 10.4 M/s · 8.96 M/s | 1.23× 10 M/s · 8.1 M/s |
| uint16_t | 1/1.03× 11.4 M/s · 11.7 M/s | 1/1.03× 11.4 M/s · 11.7 M/s | 1/1.03× 11.4 M/s · 11.7 M/s | 1.14× 9.32 M/s · 8.2 M/s | 1.19× 8.97 M/s · 7.56 M/s |
| uint32_t | 1/1.05× 12 M/s · 12.6 M/s | 1/1.05× 12 M/s · 12.6 M/s | 1/1.05× 12 M/s · 12.6 M/s | 1.15× 10 M/s · 8.73 M/s | 1.16× 9.6 M/s · 8.3 M/s |
| uint64_t | 1/1.07× 7.05 M/s · 7.56 M/s | 1/1.09× 6.94 M/s · 7.56 M/s | 1/1.39× 4.79 M/s · 6.67 M/s | 1.51× 1.75 M/s · 1.16 M/s | 1.46× 1.69 M/s · 1.16 M/s |
| float | 1.02× 12 M/s · 11.7 M/s | 1.02× 12 M/s · 11.7 M/s | 1.02× 12 M/s · 11.7 M/s | 1/1.69× 3.8 M/s · 6.42 M/s | 1.29× 1.73 M/s · 1.34 M/s |
| double | 1.88× 2.96 M/s · 1.58 M/s | 1.70× 2.68 M/s · 1.58 M/s | 1/1.19× 1.86 M/s · 2.22 M/s | 1/3.64× 459 k/s · 1.67 M/s | 1.61× 1.11 M/s · 688 k/s |