16 of the 20 features in our table differ between the ESP32-P4 and the ESP32-S3.
400 MHz dual-core, MIPI camera and display, no radio
The most powerful: two cores at 400 MHz, MIPI camera and display, an H.264 encoder, USB 2.0 high speed and Ethernet, but no radio.
Watch out: No Wi-Fi or Bluetooth on the chip: boards add a second chip, often an ESP32-C6. Early revisions (v1.x) run at 360 MHz.
Dual-core, PSRAM, USB OTG, camera, AI instructions
The all-rounder: two cores at 240 MHz, PSRAM, USB OTG, camera and RGB display interfaces, and vector instructions for AI.
Watch out: On modules with octal PSRAM, GPIO 35 to 37 are taken. Bluetooth is LE only, so no A2DP audio.
| Feature | ESP32-P4 | ESP32-S3 |
|---|---|---|
| CPU | 2 × RISC-V, 400 MHz | 2 × Xtensa LX7, 240 MHz |
| Low-power core | LP RISC-V core | ULP RISC-V + FSM |
| SRAM | 768 KB | 512 KB |
| PSRAM | In-package, 16 or 32 MB | In-package or external, quad or octal |
| Wi-Fi | No | Wi-Fi 4 (802.11 b/g/n), 2.4 GHz |
| Bluetooth | No | LE 5 |
| USB | OTG high speed + full speed, Serial/JTAG | OTG full speed + Serial/JTAG |
| GPIO | 55 | 45 |
| ADC channels | 14 | 20 (ADC1: 10) |
| Camera | MIPI-CSI + parallel | Parallel (DVP) |
| Display interface | MIPI-DSI + parallel | Parallel RGB and i80 |
| TWAI (CAN) | 3 | 1 |
| Ethernet MAC | Yes (RMII) | No (SPI module) |
| Deep sleep | See datasheet | 7 µA |
| AI / DSP | 128-bit SIMD (AI/DSP) | 128-bit SIMD (PIE) |
| ESPHome | Yes (ESP-IDF, Wi-Fi from a second chip) | Yes (ESP-IDF or Arduino) |
Same on both: Thread / Zigbee, DAC, Touch pins, and Arduino-ESP32.
Open the ESP32 comparison →Tick what your project needs and see which of the eight chips fits best.
The ESP32-P4 has USB 2.0 high speed (480 Mbit/s), a MIPI-CSI camera interface, a MIPI-DSI display interface, and H.264 video encoding in hardware. The ESP32-S3 has Wi-Fi on the chip (Wi-Fi 4 on 2.4 GHz), Bluetooth LE, more analog inputs (20 against 14), and the Arduino framework in ESPHome.
Espressif rates the ESP32-S3 at 7 µA in deep sleep; for the ESP32-P4, check the latest datasheet. On a board the regulator and the LEDs usually draw more than either chip.
Arduino-ESP32 and ESP-IDF support both chips, so most code builds for either; pin numbers, strapping pins and some peripherals change. Anything that uses USB 2.0 high speed (480 Mbit/s) or a MIPI-CSI camera interface won’t carry over: the ESP32-S3 doesn’t have that hardware.
ESP32 vs ESP32-P4 ESP32 vs ESP32-S3 ESP32-C3 vs ESP32-P4 ESP32-C3 vs ESP32-S3 ESP32-C5 vs ESP32-P4 ESP32-C5 vs ESP32-S3 ESP32-C6 vs ESP32-P4 ESP32-C6 vs ESP32-S3 ESP32-H2 vs ESP32-P4 ESP32-H2 vs ESP32-S3 ESP32-P4 vs ESP32-S2 ESP32-S2 vs ESP32-S3
Figures from Espressif datasheets, ESPHome and Arduino-ESP32 documentation, checked in November 2026.