ESP32 vs ESP32-S3
Xtensa LX6 (ESP32) at 240 MHz against Xtensa LX7 (ESP32-S3) at 240 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
Typical gap
1.08×
ESP32-S3 faster, geometric mean of 30 cells
Biggest win for ESP32
1.09×
float divide
Biggest win for ESP32-S3
1.14×
uint64_t multiply
Clock for clock
1.08×
ESP32-S3 needs fewer cycles per op (1.00× clock gap)
Operation by operation
Every cell
How many times faster ESP32 is than ESP32-S3, operations per second. Blue: ESP32 ahead. Orange: ESP32-S3 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.10× 10.4 M/s · 11.5 M/s | 1/1.09× 10 M/s · 10.9 M/s |
| uint16_t | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.11× 11.4 M/s · 12.7 M/s | 1/1.09× 9.32 M/s · 10.1 M/s | 1/1.08× 8.97 M/s · 9.72 M/s |
| uint32_t | 1/1.12× 12 M/s · 13.4 M/s | 1/1.12× 12 M/s · 13.4 M/s | 1/1.12× 12 M/s · 13.4 M/s | 1/1.10× 10 M/s · 11 M/s | 1/1.09× 9.6 M/s · 10.5 M/s |
| uint64_t | 1/1.12× 7.05 M/s · 7.87 M/s | 1/1.12× 6.94 M/s · 7.81 M/s | 1/1.14× 4.79 M/s · 5.45 M/s | 1/1.03× 1.75 M/s · 1.8 M/s | 1/1.03× 1.69 M/s · 1.74 M/s |
| float | 1/1.06× 12 M/s · 12.7 M/s | 1/1.06× 12 M/s · 12.7 M/s | 1/1.06× 12 M/s · 12.7 M/s | 1.09× 3.8 M/s · 3.48 M/s | 1/1.13× 1.73 M/s · 1.95 M/s |
| double | 1/1.03× 2.96 M/s · 3.04 M/s | 1/1.04× 2.68 M/s · 2.79 M/s | 1/1.07× 1.86 M/s · 2 M/s | 1/1.12× 459 k/s · 516 k/s | 1/1.11× 1.11 M/s · 1.22 M/s |