Arduino Uno vs ESP32-S3
ATmega328P at 16 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
61.8×
ESP32-S3 faster, geometric mean of 30 cells
Biggest win for Arduino Uno
0.08×
double modulo
Biggest win for ESP32-S3
442×
uint32_t divide
Clock for clock
4.12×
ESP32-S3 needs fewer cycles per op (15.0× clock gap)
Operation by operation
Every cell
How many times faster Arduino Uno is than ESP32-S3, operations per second. Blue: Arduino Uno ahead. Orange: ESP32-S3 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/25.9× 490 k/s · 12.7 M/s | 1/25.9× 490 k/s · 12.7 M/s | 1/28.3× 448 k/s · 12.7 M/s | 1/80.6× 142 k/s · 11.5 M/s | 1/76.9× 142 k/s · 10.9 M/s |
| uint16_t | 1/24.3× 522 k/s · 12.7 M/s | 1/24.3× 522 k/s · 12.7 M/s | 1/30.7× 413 k/s · 12.7 M/s | 1/146× 69.5 k/s · 10.1 M/s | 1/140× 69.5 k/s · 9.72 M/s |
| uint32_t | 1/39.2× 342 k/s · 13.4 M/s | 1/39.2× 342 k/s · 13.4 M/s | 1/99.3× 135 k/s · 13.4 M/s | 1/442× 24.8 k/s · 11 M/s | 1/422× 24.8 k/s · 10.5 M/s |
| uint64_t | 1/106× 74.6 k/s · 7.87 M/s | 1/105× 74.6 k/s · 7.81 M/s | 1/152× 35.9 k/s · 5.45 M/s | 1/118× 15.3 k/s · 1.8 M/s | 1/115× 15.2 k/s · 1.74 M/s |
| float | 1/129× 98.3 k/s · 12.7 M/s | 1/128× 98.7 k/s · 12.7 M/s | 1/146× 87 k/s · 12.7 M/s | 1/108× 32.2 k/s · 3.48 M/s | 1/19.0× 103 k/s · 1.95 M/s |
| double | 1/31.0× 98.1 k/s · 3.04 M/s | 1/28.3× 98.6 k/s · 2.79 M/s | 1/23.0× 86.8 k/s · 2 M/s | 1/16.0× 32.2 k/s · 516 k/s | 1/11.9× 103 k/s · 1.22 M/s |