Raspberry Pi Raspberry Pi 1 Model B vs Raspberry Pi Zero

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Raspberry Pi 1 Model B compared with Zero

	Raspberry PiRaspberry Pi 1 Model B	Raspberry PiZero
Overview
Released
Released	February 2012	November 2015
Performance
Processor
Processor	Broadcom BCM2835 (Arm1176JZF-S)	Broadcom BCM2835 (Arm1176JZF-S)
CPU cores
CPU cores	1	1
Clock
Clock	0.7 GHz	1 GHz (better)
Memory
Memory	256 MB – 512 MB	512 MB
CPU
CPU	Single-core ARM1176JZF-S at 700MHz; "turbo mode" overclocking to up to 1GHz without voiding the warranty from September 2012	Single-core ARM11 (ARM1176JZF-S) at 1GHz
GPU
GPU	VideoCore IV	VideoCore IV
Memory
Memory	256MB at launch; 512MB on all Model B boards from 15 October 2012, at the same price	512MB LPDDR2 SDRAM
Storage
Storage	SD card slot	microSD card slot
Connections
Wi-Fi
Wi-Fi	No	No
Bluetooth
Bluetooth	No	No
Ethernet
Ethernet	Yes	No
USB ports
USB ports	2 (better)	1
Display outputs
Display outputs	1	1
GPIO pins
GPIO pins	26	40
PCIe
PCIe	No	No
Ports
Ports	2 × USB 2.0, 100Mb/s Ethernet, HDMI, RCA composite video, 3.5 mm audio jack, micro USB power	Micro USB On-The-Go data port, micro USB power, mini HDMI; unpopulated composite video header
Displays
Displays	HDMI and RCA composite video	Mini HDMI up to 1080p60; composite video header
GPIO
GPIO	26-pin header	Unpopulated 40-pin header, same pinout as Model A+, B+ and 2B
Camera and display connectors
Camera and display connectors	15-pin CSI camera port; 15-pin DSI display port	Mini 22-pin CSI camera connector from version 1.3 onwards
Design
Size
Size	–	65 × 30 mm
Power
Power	Micro USB	Micro USB
Size
Size	–	65 × 30 × 5 mm