ESP32 vs ESP32-C6
Xtensa LX6 (ESP32) at 240 MHz against RV32IMAC (ESP32-C6) at 160 MHz, on real hardware, same C kernels, clocks verified.
ESP32-C6
RV32IMAC (ESP32-C6)
- Family
- RISC-V
- Board
- ESP32-C6-DevKitM-1
- Clock
- 160 MHz
- float / double
- 32-bit / 64-bit
Typical gap
1.41×
ESP32 faster, geometric mean of 30 cells
Biggest win for ESP32
5.24×
float subtract
Biggest win for ESP32-C6
1.48×
uint64_t multiply
Clock for clock
1.07×
ESP32-C6 needs fewer cycles per op (1.50× clock gap)
Operation by operation
Every cell
How many times faster ESP32 is than ESP32-C6, operations per second. Blue: ESP32 ahead. Orange: ESP32-C6 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1/1.12× 11.4 M/s · 12.8 M/s | 1/1.22× 11.4 M/s · 14 M/s | 1/1.22× 11.4 M/s · 14 M/s | 1.29× 10.4 M/s · 8.1 M/s | 1.22× 10 M/s · 8.2 M/s |
| uint16_t | 1.11× 11.4 M/s · 10.3 M/s | 1.11× 11.4 M/s · 10.3 M/s | 1.03× 11.4 M/s · 11.1 M/s | 1.27× 9.32 M/s · 7.35 M/s | 1.21× 8.97 M/s · 7.43 M/s |
| uint32_t | 1/1.07× 12 M/s · 12.8 M/s | 1.01× 12 M/s · 11.9 M/s | 1.01× 12 M/s · 11.9 M/s | 1.36× 10 M/s · 7.35 M/s | 1.29× 9.6 M/s · 7.43 M/s |
| uint64_t | 1/1.16× 7.05 M/s · 8.2 M/s | 1/1.25× 6.94 M/s · 8.65 M/s | 1/1.48× 4.79 M/s · 7.1 M/s | 1.73× 1.75 M/s · 1.01 M/s | 1.71× 1.69 M/s · 986 k/s |
| float | 4.99× 12 M/s · 2.4 M/s | 5.24× 12 M/s · 2.29 M/s | 4.44× 12 M/s · 2.7 M/s | 4.21× 3.8 M/s · 905 k/s | 1.81× 1.73 M/s · 959 k/s |
| double | 2.12× 2.96 M/s · 1.39 M/s | 1.98× 2.68 M/s · 1.35 M/s | 1.10× 1.86 M/s · 1.7 M/s | 1/1.07× 459 k/s · 492 k/s | 1.71× 1.11 M/s · 647 k/s |