ByEvelyn Garcia 2019-06-28 2251
| Products | Raspberry Pi 4 B | Raspberry Pi 3 B+ |
| CPU | 1.5-GHz, Quad-Core Broadcom BCM2711B0 (Cortex A-72) | 1.4-GHz, Quad Core Broadcom BCM2837B0 (Cortex A-53) |
| RAM | 1GB/2GB/4GB LPDDR4-2400 SDRAM(depending on model) | 1GB LPDDR2 SDRAM |
| GPU | 500 MHz VideoCore VI | 400 MHz VideoCore IV |
| Video Out | dual micro HDMI ports | single HDMI port |
| Max resolution | 4K 60 Hz + 1080p or 2x 4K 30 Hz | 2560 x 1600 |
| Interface | ●2x USB 3.0, 2x USB 2.0 ●2-lane MIPI CSI camera port ●2-lane MIPI DSI display port ●4-pole stereo audio and composite video port ●USB Type-C | ●4x USB 2.0 ●CSI camera port ●DSI display port ●4-pole stereo output and composite video port ●micro USB |
| Wired Networking | Gigabit Ethernet | 330 Mbps Ethernet |
| Wireless | 802.11ac (2.4 / 5 GHz), Bluetooth 5.0 | 802.11b/g/n (2.4 / 5 GHz), Bluetooth 4.2 |
| Power Requirement | 3A, 5V | 2.5A, 5V |
| Size | 3.5 x 2.3 x 0.76 inches (88 x 58 x 19.5mm) | 3.2 x 2.2 x 0.76 inches (82 x 56 x 19.5mm) |
First point that strikes with this new Raspberry Pi 4, the RAM has been significantly increased from 1GB in DDR3 for the B3+ to up to 4GB in DDR4 for the Pi 4!
This increase in RAM is very welcome and should allow the Raspberry Pi to run more applications in parallel and better manage programs with high memory consumption, such as video or image processing.
While this is the most significant point, it was also the most predictable, with many of Raspberry Pi's competitors already offering this type of feature for a long time.
A first for the Raspberry Pi 4, it will offer several versions with a choice of 1GB, 2GB or 4GB of memory. It remains to be seen what impact this will have on the price.
In an effort to improve the machine's power, the Raspberry Pi 4 also features a new processor. Exit the Cortex A53 of previous generations, the Raspberry Pi 4 will be equipped with a Cortex A72.
Clocked at 1500 Mhz against 1400 Mhz for the previous versions, this processor should also be a little less energy consuming.
As before, we remain of course on an ARM processor, and more specifically an ARMv8-A in 64-bit mode.
If this processor should add a little pep to the Raspberry Pi 4 when it comes to performing calculations, it is especially on the video part that it brings a huge innovation!
Indeed, more than a simple increase in computing power, it is the embedded GPU part, i.e. the "graphics card" part of the processor that changes with the arrival of the A72 !
Indeed, if the Cortex A53 has a VideoCore IV GPU installed, it is a VideoCore VI that is present in the new Cortex A72!
But then, what are the consequences? Well, where previous models of processors, and therefore Raspberry Pi, only supported video in Full HD single screen, the new Raspberry Pi 4 will support video in 4K, and on two screens!
OpenGL 3.0 support is also added, which should also greatly improve Pi's performance in terms of graphics rendering, including video acceleration.
In concrete terms, this means that the Raspberry Pi should definitely become the reference solution for creating media centers, retro-gaming consoles, and all other activities requiring graphic calculation!
In our opinion, this modification is clearly the most important since the graphic processing was really the biggest weak point of the Raspberry Pi compared to its competitors!
Last point of improvement, the connectors have been reviewed and increased!
Thus, the Raspberry Pi 4 is equipped with a long-awaited 1 Gigabit Ethernet port and should also improve the use of the Raspberry Pi in terms of multimedia, but also for use as a server or video stream via the Internet.
The USB ports have also been revised, and two of them are now USB ports3. Here again, multimedia lovers will be happy.
The traditional HDMI port is also evolving and giving way to two Micro-HDMI ports, allowing the Raspberry Pi to be used in dual screen mode, something we've been waiting for for a long time!
Finally, even if it is more anecdotal, Bluetooth switches to version 5.0 compared to 4.2 for previous versions.
Also note that if the GPIO ports remain the same, it will now be possible to manage a few additional serial ports, good news for electronics fans.
Faced with all these new features and improvements, the question is of course that of price. What should we expect here?
As expected, the foundation remains faithful to its usual practice with a call price still maintained at 35€ for the 1GB version of RAM.
On the other hand, the other versions of the Raspberry Pi 4, see their price slightly increase, to 45€ for 2GB of RAM, and 55€ for 4GB of RAM.
So certainly, the price increases for the "top-of-the-range" versions, but we nevertheless benefit from all the improvements other than RAM on the 1GB model, with a price maintained at 35€!
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