Raspberry Pi 5 adds support for PCIe 2×1 interface

Published: Sep 28th 2023, 07:21 GMT   Comments

Raspberry Pi 5, new 16nm processor and PCIe Gen2x1

It’s been four years since the release of the Raspberry Pi 4, and the Raspberry Foundation has recently unveiled the fifth generation of this popular device.

The device’s pricing begins at $60 and features the new Broadcom BCM2712 silicon, which is based on the 64-bit ARM Cortex A76 architecture. This represents an upgrade over the previous-generation model, which utilized A72 cores. Notably, it is fabricated using the TSMC 16nm process node, a notable improvement from the previous model’s 28nm node.

Equipped with a quad-core CPU capable of boosting up to 2.4 GHz, this represents a significant performance increase, ranging from 30% to 60% higher than its predecessors, which ran at 1.8 and 1.5 GHz respectively. It is claimed to be up to three times faster than the Raspberry Pi 4. The system’s memory has been upgraded to LPDDR4X, delivering a 78% increase in speed compared to the previous model.

In terms of graphics, users have access to an enhanced VideoCore VII graphics subsystem running at an 800 MHz clock speed. It offers support for Open GL ES3.1 and Vulkan 1.2 graphics. Unfortunately, this device lacks support for VP9 and AVI1 decoding and does not include H.264 decoders.

Pi 5, Source: Raspberry Pi Ltd

The Pi 5 incorporates a south bridge chip that enhances the device’s interface capabilities. It can support up to 1.5 Gbps of bandwidth for MIPI transceivers, enabling support for two cameras or displays. More importantly, it features a native PCIe Gen2 interface, which requires a dedicated adapter like the M.2 HAT (Hardware Attached on Top) to enable support for M.2 devices. It’s worth noting that this interface has only one lane width and allows for up to 500 MB/s of bandwidth.


Pi 5, Source: Raspberry Pi Ltd

The system is equipped with a mini-HDMI interface that supports 4k60fps screens with HDR support. Additionally, it includes a MicroSD slot with upgraded SDR104 high-speed mode (up to 100 MB/s), two USB 3.0 ports, and two USB 2.0 ports. Power is supplied through a USB Type-C interface.

According to the press release, the device is priced at $60 for the 4GB version and $80 for the 8GB model, which is $5 more than the Pi 4. The system is expected to be available for retail starting from October.

[Raspberry Pi] Introducing Raspberry Pi 5 (315,346 views)
Raspberry Pi 5 and 4 in Comparison
TypeRaspberry Pi 5Raspberry Pi 4
SoC (manufacturing technology)Broadcom BCM2712 (16nm)Broadcom BCM2711 (28nm)
I/O chipRaspberry Pi RP1 (40nm)– (USB 3.0: VIA VL805)
ARM cores / crypto extensions4 × Cortex-A76, 2.4GHz / ✓4 × Cortex-A72, 1.8 GHz / –
L2/L3 cache4 × 512 KByte / 2 MB shared1 MB shared / –
R.A.M.4 or 8 GB LPDDR4X-42661, 2, 4 or 8 GB LPDDR4-2400
GPUVideoCore VII (VC7), 800 MHzVideoCore VI (VC6), 500 MHz
H.265 (HEVC) decoding/encoding4K, 60fps / kA4K, 60fps / –
H.264 (MP4) decoding/encoding– / – (Software)1080p, 60fps / 1080p, 30fps
Decoding VP9/AV1– / –– / –
HDMI (Micro HDMI)2 × 4K/60Hz, HDR2×4K/60Hz
MIPI CSI and DSI2 × 4 lanes, 1.5 Gbit/s1 × CSI + 1 × DSI, 2 lanes each, 1 Gbit/s
Audio Jack
PCIe 2.0 x1 / 40-pin GPIO✓ (1 lane via HAT) / ✓– / ✓
USB 3.2 Gen 1/2.02/22/2
Gigabit Ethernet✓ (with PoE via header)✓ (with PoE via header)
Wi-Fi 802.11ac, Bluetooth2.4/5GHz, BT 5.0 with BLE2.4/5GHz, BT 5.0 with BLE
MicroSD slot✓ (up to SDR104)✓ (up to DDR50)
USB-C (power supply)5V/5A (25W), USB PD5V/3A (15W)
Other Properties
Power button / fan connection✓ / ✓– / –
RTC / backup battery connection✓ / ✓– / –
MiscellaneousPosition of USB and RJ45 sockets changed
Prices (list without VAT / street with VAT)
with 4/8 GB of RAM60 / 80 US$ (– / –)55 / 75 US$ (70 / 88 €)
with 1/2 GB of RAMmay come later35 / 40 US$ (52 / 62 €)

Source: The Verge, Heise

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