SBC

load, power (without any peripherals)

Raspberry (all 5V)

• 4B Idle 540 mA (2.7 W)
• 4B ab -n 100 -c 10 (uncached) 1010 mA (5.1 W)
• 4B 400% CPU load (stress --cpu 4) 1280 mA (6.4 W)
• 3B+ HDMI off, LEDs off 350 mA (1.7 W)
• 3B+ HDMI off, LEDs off, onboard WiFi 400 mA (2.0 W)
• 3B+ desktop, 1080p video 510 - 520 mA
• 3B HDMI off, LEDs off 230 mA (1.2 W)
• 3B HDMI off, LEDs off, onboard WiFi 250 mA (1.2 W)
• 3B desktop, 1080p video 360 - 390 mA
• 2B HDMI off, LEDs off 200 mA (1.0 W)
• 2B HDMI off, LEDs off, USB WiFi 240 mA (1.2 W)
• 2B desktop, 1080p video 350 - 370 mA
• Zero 2 W HDMI off, LED off 100 mA (0.6 W)
• Zero 2 W HDMI off, LEDs off, onboard WiFi 120 mA (0.7 W)
• Zero W desktop, 1080p video 170 - 270 mA
• Zero HDMI off, LED off 80 mA (0.4 W)
• Zero HDMI off, LED off, USB WiFi 120 mA (0.7 W)
• Zero 1080p video 140 mA
• B+ HDMI off, LEDs off 180 mA (0.9 W)
• B+ HDMI off, LEDs off, USB WiFi 220 mA (1.1 W)
• B+ desktop, 1080p video 240 -340 mA
• A+ HDMI off, LEDs off 80 mA (0.4 W)
• A+ HDMI off, LEDs off, USB WiFi 160 mA (0.8 W)
• A+ desktop, 1080p video 140 -250 mA

Arduino

• Uno R3 50 mA (5V)
• Nano 10 - 30 mA (3.3V)
• pro mini 8MHz 5 mA (3.3V)
• pro mini 1MHz 500 uA (1.8V)

CPU

ARM Cortex M0+ (32-Bit Single-Core 48MHz 256KB FLASH)

• idle 1.3 mA - 2.4 mA
• simple load 4 - 6 mA

Radio components

Bluetooth Low Energy

NINA B3 (Arduino Nano 33)

• sleep 1 - 2 uA
• connected, standby 8dbm 1 mA (3.3V) 1.6 mA (1.8V)
• TX burst 1kB/10ms 2Mbit 14 mA

Sources:

• https://www.raspberrypi-spy.co.uk/2018/11/raspberry-pi-power-consumption-data/
• https://www.pidramble.com/wiki/benchmarks/power-consumption
• https://raspi.tv/2018/how-much-power-does-raspberry-pi-3b-use-power-measurements
• https://www.iot-experiments.com/arduino-pro-mini-power-consumption/