# Raspberry Pi 4 Model B

> credit-card-sized single-board computer

**Wikidata**: [Q65015606](https://www.wikidata.org/wiki/Q65015606)  
**Source**: https://4ort.xyz/entity/raspberry-pi-4-model-b

## Summary
The Raspberry Pi 4 Model B is a credit-card-sized single-board computer released in 2019, featuring a Broadcom BCM2711 quad-core processor and up to 8GB of RAM. It succeeded the Raspberry Pi 3 Model B+ and was succeeded by the Raspberry Pi 5, making it a key model in the Raspberry Pi series for educational and embedded systems use.

## Key Facts
- Released on June 24, 2019 (source: [Raspberry Pi Blog](https://www.raspberrypi.org/blog/raspberry-pi-4-on-sale-now-from-35/))
- Part of the Raspberry Pi series, a line of low-cost single-board computers
- Successor to the Raspberry Pi 3 Model B+ (released March 14, 2018)
- Predecessor to the Raspberry Pi 5
- CPU: Broadcom BCM2711 quad-core processor
- RAM options: 2GB, 4GB, or 8GB
- Storage: microSD card slot, with capacity options of 1GB, 2GB, 4GB, or 8GB
- Connectivity: Gigabit Ethernet (RJ45), USB 3.0 (2 ports), USB 2.0 (2 ports), Micro-HDMI (2 ports), USB-C receptacle, Display Serial Interface, Camera Serial Interface
- Dimensions: 85.6 mm × 56.5 mm × 17 mm
- Weight: 46 grams (source: [Medium article](https://medium.com/@ghalfacree/benchmarking-the-raspberry-pi-4-73e5afbcd54b))
- Price: $35 (2GB model), $45 (4GB model), $55 (8GB model)
- Base clock frequency: 1.5 GHz
- Power input: 5V via USB-C or GPIO header

## FAQs
### Q: What are the main differences between Raspberry Pi 4 Model B and its predecessor, the Raspberry Pi 3 Model B+?
A: The Raspberry Pi 4 Model B features a faster Broadcom BCM2711 quad-core processor, dual-band Wi-Fi, Bluetooth 5.0, and up to 8GB of RAM, compared to the Raspberry Pi 3 Model B+'s Broadcom BCM2837B0 quad-core processor, single-band Wi-Fi, Bluetooth 4.2, and up to 1GB of RAM.

### Q: What are the available RAM configurations for Raspberry Pi 4 Model B?
A: The Raspberry Pi 4 Model B comes with 2GB, 4GB, or 8GB of RAM, depending on the model purchased.

### Q: What is the maximum storage capacity for Raspberry Pi 4 Model B?
A: The Raspberry Pi 4 Model B supports microSD cards with capacities of up to 8GB, though larger storage can be achieved using external drives.

### Q: What are the power requirements for Raspberry Pi 4 Model B?
A: The Raspberry Pi 4 Model B requires a 5V power supply, which can be provided via the USB-C port or the GPIO header.

### Q: What are the key connectivity options available on Raspberry Pi 4 Model B?
A: The Raspberry Pi 4 Model B includes Gigabit Ethernet (RJ45), USB 3.0 (2 ports), USB 2.0 (2 ports), Micro-HDMI (2 ports), USB-C receptacle, Display Serial Interface, and Camera Serial Interface.

## Why It Matters
The Raspberry Pi 4 Model B was a significant advancement in the Raspberry Pi series, offering improved performance and connectivity compared to its predecessors. Its release in 2019 marked a shift towards more powerful and versatile single-board computers, making it a popular choice for educational projects, embedded systems, and hobbyist computing. The model's quad-core processor, dual-band Wi-Fi, Bluetooth 5.0, and up to 8GB of RAM made it suitable for a wider range of applications, from home automation to advanced prototyping. Additionally, its compact size and low cost made it accessible to a broad audience, further cementing its role in the maker and educational communities. The Raspberry Pi 4 Model B's success also paved the way for the subsequent Raspberry Pi 5, continuing the series' legacy of innovation in affordable computing.

## Notable For
- First Raspberry Pi model to feature a quad-core processor (Broadcom BCM2711)
- First Raspberry Pi model to offer up to 8GB of RAM
- First Raspberry Pi model to include dual-band Wi-Fi and Bluetooth 5.0
- First Raspberry Pi model to support USB 3.0 connectivity
- First Raspberry Pi model to include a USB-C port for power and data

## Body
### Overview
The Raspberry Pi 4 Model B is a credit-card-sized single-board computer released by the Raspberry Pi Foundation in June 2019. It is part of the Raspberry Pi series, a line of low-cost single-board computers designed for educational purposes and embedded systems. The Raspberry Pi 4 Model B succeeded the Raspberry Pi 3 Model B+ and was succeeded by the Raspberry Pi 5.

### Specifications
The Raspberry Pi 4 Model B features a Broadcom BCM2711 quad-core processor with a base clock frequency of 1.5 GHz. It comes with 2GB, 4GB, or 8GB of RAM, depending on the model purchased. The storage is provided by a microSD card slot, with capacity options of 1GB, 2GB, 4GB, or 8GB. The Raspberry Pi 4 Model B includes Gigabit Ethernet (RJ45), USB 3.0 (2 ports), USB 2.0 (2 ports), Micro-HDMI (2 ports), USB-C receptacle, Display Serial Interface, and Camera Serial Interface for connectivity. The dimensions of the Raspberry Pi 4 Model B are 85.6 mm × 56.5 mm × 17 mm, and it weighs 46 grams. The price ranges from $35 for the 2GB model to $55 for the 8GB model.

### Connectivity and Power
The Raspberry Pi 4 Model B includes Gigabit Ethernet (RJ45) for high-speed wired networking, USB 3.0 (2 ports) for faster data transfer, and USB 2.0 (2 ports) for additional connectivity. It also features Micro-HDMI (2 ports) for video output, a USB-C receptacle for power and data, Display Serial Interface for display connectivity, and Camera Serial Interface for camera modules. The Raspberry Pi 4 Model B requires a 5V power supply, which can be provided via the USB-C port or the GPIO header.

### Performance and Features
The Raspberry Pi 4 Model B offers improved performance compared to its predecessors, including the Raspberry Pi 3 Model B+. It features a quad-core processor, dual-band Wi-Fi, Bluetooth 5.0, and up to 8GB of RAM, making it suitable for a wider range of applications. The Raspberry Pi 4 Model B's compact size and low cost make it accessible to a broad audience, further cementing its role in the maker and educational communities.

### Legacy and Impact
The Raspberry Pi 4 Model B was a significant advancement in the Raspberry Pi series, offering improved performance and connectivity. Its release in 2019 marked a shift towards more powerful and versatile single-board computers, making it a popular choice for educational projects, embedded systems, and hobbyist computing. The Raspberry Pi 4 Model B's success also paved the way for the subsequent Raspberry Pi 5, continuing the series' legacy of innovation in affordable computing.

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## References

1. [Source](https://www.raspberrypi.org/blog/raspberry-pi-4-on-sale-now-from-35/)
2. [Source](https://medium.com/@ghalfacree/benchmarking-the-raspberry-pi-4-73e5afbcd54b)