ESP32-C6 vs ESP32
RV32IMAC (ESP32-C6) at 160 MHz against Xtensa LX6 (ESP32) at 240 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-C6
1.48×
uint64_t multiply
Biggest win for ESP32
5.24×
float subtract
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-C6 is than ESP32, operations per second. Blue: ESP32-C6 ahead. Orange: ESP32 ahead.
| Add | Subtract | Multiply | Divide | Modulo | |
|---|---|---|---|---|---|
| uint8_t | 1.12× 12.8 M/s · 11.4 M/s | 1.22× 14 M/s · 11.4 M/s | 1.22× 14 M/s · 11.4 M/s | 1/1.29× 8.1 M/s · 10.4 M/s | 1/1.22× 8.2 M/s · 10 M/s |
| uint16_t | 1/1.11× 10.3 M/s · 11.4 M/s | 1/1.11× 10.3 M/s · 11.4 M/s | 1/1.03× 11.1 M/s · 11.4 M/s | 1/1.27× 7.35 M/s · 9.32 M/s | 1/1.21× 7.43 M/s · 8.97 M/s |
| uint32_t | 1.07× 12.8 M/s · 12 M/s | 1/1.01× 11.9 M/s · 12 M/s | 1/1.01× 11.9 M/s · 12 M/s | 1/1.36× 7.35 M/s · 10 M/s | 1/1.29× 7.43 M/s · 9.6 M/s |
| uint64_t | 1.16× 8.2 M/s · 7.05 M/s | 1.25× 8.65 M/s · 6.94 M/s | 1.48× 7.1 M/s · 4.79 M/s | 1/1.73× 1.01 M/s · 1.75 M/s | 1/1.71× 986 k/s · 1.69 M/s |
| float | 1/4.99× 2.4 M/s · 12 M/s | 1/5.24× 2.29 M/s · 12 M/s | 1/4.44× 2.7 M/s · 12 M/s | 1/4.21× 905 k/s · 3.8 M/s | 1/1.81× 959 k/s · 1.73 M/s |
| double | 1/2.12× 1.39 M/s · 2.96 M/s | 1/1.98× 1.35 M/s · 2.68 M/s | 1/1.10× 1.7 M/s · 1.86 M/s | 1.07× 492 k/s · 459 k/s | 1/1.71× 647 k/s · 1.11 M/s |