Raspberry Pi Raspberry Pi 3 Model B vs Raspberry Pi Zero W

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Raspberry Pi 3 Model B compared with Zero W

	Raspberry PiRaspberry Pi 3 Model B	Raspberry PiZero W
Overview
Released
Released	February 2016	February 2017
Performance
Processor
Processor	Broadcom BCM2837 (Arm Cortex-A53)	Broadcom BCM2835 (Arm1176JZF-S)
CPU cores
CPU cores	4 (better)	1
Clock
Clock	1.2 GHz (better)	1 GHz
Memory
Memory	1 GB (better)	512 MB
CPU
CPU	Quad-core 64-bit Arm Cortex-A53 at 1.2GHz; BCM2837 on revision 1.1 boards, BCM2837B0 on revision 1.2	Single-core ARM1176JZF-S at 1GHz
GPU
GPU	VideoCore IV; VideoCore subsystem at 400MHz and 3D core at 300MHz	VideoCore IV
Memory
Memory	1GB	512MB
Storage
Storage	microSD card slot	microSD card slot
Connections
Wi-Fi
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
Ethernet
Ethernet	Yes	No
USB ports
USB ports	4 (better)	1
Display outputs
Display outputs	1	1
GPIO pins
GPIO pins	40	40
PCIe
PCIe	No	No
Ports
Ports	4 × USB 2.0, 100Mb/s Ethernet, full-size HDMI, 3.5 mm audio and composite video jack, micro USB power	Micro USB On-The-Go data port, micro USB power, mini HDMI; composite video and reset headers
Displays
Displays	1 × full-size HDMI	Mini HDMI; composite video header
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	2.4GHz 802.11n Wi-Fi (35Mb/s); Bluetooth 4.1, BLE	2.4GHz 802.11n Wi-Fi (Cypress CYW43438); Bluetooth 4.0, BLE
GPIO
GPIO	40-pin header	HAT-compatible 40-pin header, unpopulated (pre-soldered on Zero WH)
Camera and display connectors
Camera and display connectors	15-pin CSI camera port; 15-pin DSI display port	CSI camera connector
Design
Size
Size	85 × 56 mm	65 × 30 mm
Power
Power	5V via micro USB; a 2.5A supply is recommended for power-hungry USB devices	Micro USB
Size
Size	85 × 56 mm board	65 × 30 mm, the same form factor as Zero and Zero 2 W