- Code from: http://codeandlife.com/2012/07/03/benchmarking-raspberry-pi-gpio-speed/
- Various methods to toggle Raspberry Pi GPIO.
- Shows speed of each method.
- Installation instructions added to each code snippet
| Language | Library | Tested | Version | Speed |
|---|---|---|---|---|
| Shell | /proc/mem access | 2015-02-14 | 2.8 kHz | |
| Shell_Util | WiringPi | 2015-02-15 | 2.25 | 40 Hz |
| Python | RPi.GPIO | 2015-02-15 | 0.5.10 | 70 kHz |
| Python | wiringpi2 | 2015-02-15 | github | 28 kHz |
| Ruby | wiringpi | 2015-02-15 | 1.1.0 | 21 kHz |
| C | Native library | 2015-02-15 | latest | 22 MHz |
| C | BCM 2835 | 2015-02-15 | 1.38 | 5.4 MHz |
| C | wiringPi | 2015-02-15 | 2.25 | 4.6 MHz |
| Perl | BCM 2835 | 2015-02-15 | 1.9 | 48 kHz |
| RPi 3 A+ | RPi 3 B+ | RPi Zero WH | RPi Zero W | RPi 3 B | RPi Zero | RPi 2 B | RPi A+ | RPi B | |
|---|---|---|---|---|---|---|---|---|---|
| Release date | 2018 Nov 15 | 2018 Mar 14 | 2018 Jan 12 | 2017 Feb 28 | 2016 Feb 29 | 2015 Nov 30 | 2015 Feb 1 | 2014 Nov 10 | 2012 Feb 15 |
| Price | US$25.00 | US$35.00 | US$15.00 | US$10.00 | US$35.00 | US$5.00 | US$35.00 | US$20.00 | US$35.00 |
| SOC Type | BCM2837 B0 | BCM2837 B0 | BCM2835 | BCM2835 | BCM2837 | BCM2835 | BCM2836 | BCM2835 | BCM2835 |
| Core Type | Cortex-A53(64) | Cortex-A53(64) | ARM1176JZF-S | ARM1176JZF-S | Cortex-A53(64) | ARM1176JZF-S | Cortex-A7 | ARM1176JZF-S | ARM1176JZF-S |
| No. Of Cores | 4 | 4 | 1 | 1 | 4 | 1 | 4 | 1 | 1 |
| GPU | VideoCore IV | VideoCore IV | VideoCore IV | VideoCore IV | VidCoreIV | VideoCore IV | VideoCore IV | VideoCore IV | VidCoreIV |
| GPU Clock | 400MHz | 250MHz | 250MHz | ||||||
| Resolution | 1080p@30 | 1080p@30 | |||||||
| CPU Clock | 1.4 GHz | 1.4 GHz | 1 GHz | 1 GHz | 1.2 GHz | 1 GHz | 900 MHz | 700 MHz | 700 MHz |
| RAM | 512 MB DDR2 | 1 GB DDR2 | 512 MB | 512 MB | 1 GB DDR2 | 512 MB | 1 GB | 256 MB | 512 MB |
| USB Ports | 1xUSB 2.0 | 4xUSB 2.0 | micro OTG | micro OTG | 4 | micro OTG | 4 | 1 | 2x USB 2.0 |
| Ethernet | No | Gigabit(USB2.0) | No | No | 10/100M | No | 10/100M | No | Yes |
| SATA Ports | No | No | No | No | No | No | No | No | No |
| HDMI port | Full | Full | mini | mini | Full | mini | Full | Full | Full |
| Analog Vid Out | 3.5mm | 3.5mm | PCB pin | PCB pin | 3.5mm | PCB pin | 3.5mm | 3.5mm | RCA |
| Analog Aud Out | 3.5mm | 3.5mm | HDMI audio | HDMI audio | 3.5mm | HDMI audio | 3.5mm | 3.5mm | 3.5mm |
| Analog Aud In | No | No | No | No | No | No | No | No | GPIO USB Mic |
| SPI | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| I2C | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| GPIO | 40-pin | 40-pin | 40-pin | 40-pin | 40-pin | 40-pin | Yes | Yes | 26-pins |
| LCD Panel | Yes | Yes | No | No | Yes | No | Yes | Yes | Yes DSI |
| Camera | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes DSI |
| SD/MMC | microSD | microSD | microSD | microSD | microSD | microSD | microSD | microSD | SD SDHC SDXC (2TB) |
| Serial | RX/TX UART | - | - | - | - | - | - | Exp Conn(Lvl Shftr) | |
| --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- |
| Wi-Fi | 802.11 b/g/n/ac | 802.11 b/g/n/ac | Yes 802.11n | Yes 802.11n | Yes 802.11n | No | No | No | No |
| Bluetooth® | BT4.2/BLE | BT4.2/BLE | BT4.1 | BT4.1 | BT4.1 LE | No | No | No | No |
| --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- |
| Height | 2.55in(65mm) | 3.37in(85.6mm) | 1.18in(30mm) | 1.18in(30mm) | 3.37in(85.6mm) | 1.18in(30mm) | 3.37in(85.6mm) | 2.55in(65mm) | 2.12in(53.98mm) |
| Width | 2.20in(56mm) | 2.22in(56.5mm) | 2.55in(65mm) | 2.55in(65mm) | 2.22in(56.5mm) | 2.55in(65mm) | 2.22in(56.5mm) | 2.22in(56.5mm) | 3.37in(85.6mm) |
| Depth | 0.433in(11mm) | 0.669in(17mm) | 0.512in(13mm) | 0.197in(5mm) | 0.669in(17mm) | 0.197in(5mm) | 0.669in(17mm) | 0.394in(10mm) | 0.669in(17mm) |
| Weight | 1.02oz(29 g) | 1.58oz(45 g) | 0.42328oz(12 g) | 0.31746oz(9 g) | 1.58oz(45 g) | 0.31746oz(9 g) | 1.58oz(45 g) | 0.81130oz(23 g) | 1.58oz(45 g) |
| --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- | --------------- |
| Power ratings | 1.13 A @5V | 180 mA | 180 mA | 1.34 A @5V | 160 mA | 800 mA | 200 mA | 700 mA @5V | |
| Power sources | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO | microUSB/GPIO |
| POE | No | with PoE Hat | No | No | No | No | No | No | No |
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