Espressif
400 KB SRAM at 160 MHz supports basic ML inference (anomaly detection, keyword spotting). Single-core limits real-time processing for demanding workloads.
| Processor | Single-core RISC-V @ 160 MHz |
| Cores | 1 |
| Clock | 160 MHz |
| SRAM | 400 KB |
| Flash | 4 MB |
| FPU | none |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 5.0 LE |
| Key Features | RISC-V architecture, Ultra-low cost, Hardware crypto acceleration |
| Price | $1–$3 (chip), $4–$10 (dev board) |
16 dev boards available across PlatformIO registries.
Excellent
For anomaly detection, the ESP32-C3 with Edge Impulse scores Excellent. Its 400 KB internal SRAM (12.5x the required 32 KB) and 160 MHz cloc…
Good
The ESP32-C3 is a cost-effective option for Wi-Fi-connected anomaly detection. Its 400 KB SRAM runs autoencoder models comfortably while the…
Excellent
The ESP32-C3 is an excellent match for fall detection with Edge Impulse. 400 KB SRAM delivers 6.3x the 64 KB minimum while 160 MHz processes…
Excellent
For fall detection, the ESP32-C3 with TFLite Micro scores Excellent. Its 400 KB internal SRAM (6.3x the required 64 KB) and 160 MHz clock en…
Good
The ESP32-C3 runs gesture recognition models from Edge Impulse with low inference latency. Its 400 KB SRAM handles IMU classifiers with 5-10…
Excellent
The ESP32-C3 is an excellent match for gesture recognition with TFLite Micro. 400 KB SRAM delivers 6.3x the 64 KB minimum while 160 MHz proc…
Good
Espressif's ESP32-C3 is a solid choice for image classification using Edge Impulse. The risc-v core at 160 MHz with 400 KB SRAM accommodates…
Good
The ESP32-C3 handles image classification effectively with TFLite Micro. 400 KB SRAM at 160 MHz provides 3.1x headroom over the 128 KB requi…
Good
Espressif's ESP32-C3 is a solid choice for people counting using Edge Impulse. The risc-v core at 160 MHz with 400 KB SRAM accommodates 200 …
Good
The ESP32-C3 handles people counting effectively with TFLite Micro. 400 KB SRAM at 160 MHz provides 2.1x headroom over the 192 KB requiremen…
Excellent
The ESP32-C3 is an excellent match for predictive maintenance with Edge Impulse. 400 KB SRAM delivers 6.3x the 64 KB minimum while 160 MHz p…
Possible
The ESP32-C3 handles predictive maintenance classification with TFLite Micro, though its single RISC-V core at 160 MHz requires careful reso…
Excellent
Espressif's ESP32-C3 excels at sound classification via Edge Impulse. The 1-core risc-v at 160 MHz with 400 KB SRAM handles 40 KB quantized …
Excellent
Espressif's ESP32-C3 excels at sound classification via TFLite Micro. The 1-core risc-v at 160 MHz with 400 KB SRAM handles 40 KB quantized …
Good
The ESP32-C3 handles voice recognition effectively with Edge Impulse. 400 KB SRAM at 160 MHz provides 3.1x headroom over the 128 KB requirem…
Good
The ESP32-C3 handles wildlife monitoring effectively with Edge Impulse. 400 KB SRAM at 160 MHz provides 3.1x headroom over the 128 KB requir…
Good
Espressif's ESP32-C3 is a solid choice for wildlife monitoring using TFLite Micro. The risc-v core at 160 MHz with 400 KB SRAM accommodates …
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EFR32MG
Silicon Labs
256 KB RAM · 40 MHz
ESP32
Espressif
520 KB RAM · 240 MHz
ESP32-C6
Espressif
512 KB RAM · 160 MHz
ESP32-S2
Espressif
320 KB RAM · 240 MHz
ESP32-S3
Espressif
512 KB RAM · 240 MHz
GAP8
GreenWaves Technologies
512 KB RAM · 250 MHz
i.MX RT1052
NXP
512 KB RAM · 600 MHz
i.MX RT1062
NXP
1024 KB RAM · 600 MHz
i.MX RT1064
NXP
1024 KB RAM · 600 MHz
LPC55xx
NXP
320 KB RAM · 150 MHz
nRF52832
Nordic Semiconductor
64 KB RAM · 64 MHz
nRF52833
Nordic Semiconductor
128 KB RAM · 64 MHz
nRF52840
Nordic Semiconductor
256 KB RAM · 64 MHz
RA6M5
Renesas
512 KB RAM · 200 MHz
SAMD51
Microchip
256 KB RAM · 120 MHz
SAME51
Microchip
256 KB RAM · 120 MHz
STM32F3
STMicroelectronics
80 KB RAM · 72 MHz
STM32F4
STMicroelectronics
192 KB RAM · 168 MHz
STM32F7
STMicroelectronics
512 KB RAM · 216 MHz
STM32G4
STMicroelectronics
128 KB RAM · 170 MHz
STM32H5
STMicroelectronics
640 KB RAM · 250 MHz
STM32H7
STMicroelectronics
1024 KB RAM · 480 MHz
STM32L4
STMicroelectronics
128 KB RAM · 80 MHz
STM32L5
STMicroelectronics
256 KB RAM · 110 MHz
STM32U5
STMicroelectronics
786 KB RAM · 160 MHz
STM32WB
STMicroelectronics
256 KB RAM · 64 MHz
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