Lichee Pi 4A is a Single Tablet PC (SBC) powered by Alibaba T-Head TH1520 Quad-Core RISC-V Xuantie C910 1.8GHz processor with fancy GPU and 4 AI TOPS NPU that can rival the Raspberry Pi 4 in terms of performance and features.
We previously mentioned the Lichee Pi 4A (LPi4A) in our article about the Sipeed LM4A RISC-V System on Unity, but at the time we only had some benchmarks of the board and no pictures and specs about the SBC. Sipeed has now released photos and more detailed specs and is taking “pre-orders.” So let’s take a look.
Lichee Pi 4A specifications vs. Raspberry Pi 4 specifications.
|Lichee Pi 4A||Raspberry Pi 4B|
|CPU||T-Head TH1520, 12nm, 4x RISC-V C910 @ 1.8GHz||Broadcom BCM2711B0, 28 nm, 4x ARM Cortex-A72 @ 1.5GHz|
|memory||4, 8, 16 GB LPDDR4X-3733 64-bit||1, 2, 4, 8 GB LPDDR4-2400 32-bit|
|storage||MicroSD card or
16, 32, 64 or 128 GB eMMC flash
|micro sd card|
OpenCL 1.1 / 1.2 / 2.0
Vulcan 1.1 / 1.2
50.7GFLOPS, fill 3168M pixels/sec
|Broadcom VideoCore VI
Vulcan 1.0 / 1.2
|NPU||4 TOPS @ INT8 (1GHz)
Supports Tensorflow, ONNX, and Caffe
|Show||1 x HDMI 2.0 port up to 4Kp60
4 lanes MIPI DSI up to 4Kp50
|2x HDMI 2.0 up to 4Kp60
2 MIPI DSI path
3.5mm AV port
|camera||1x 4-lane MIPI CSI
1x 2-lane MIPI CSI
|2 MIPI CSI track|
|video||H.265 and H.264 @ 4Kp75 decoding
H.265 & H.264 @ 4Kp40
|H265 4Kp60fps decoder
H264 1080p60 decoding
H264 1080p30 encoding
|My voice||Headphone jack
|network||2x Gigabit Ethernet
WiFi 4 or 6 + Bluetooth 5.0
|1 Gigabit Ethernet port
Wi-Fi 5 and Bluetooth 5.0
|USB||4x USB 3.0 Type-A
1 x USB 2.0 Type C port
|Two USB 3.0 Type A ports
Two USB 2.0 Type A ports
|I/O header||20-pin GPIO connector||40-pin GPIO connector|
|power||5V via 5.5mm DC jack or USB Type C.
|5V over USB Type C up to 3A
5V via GPIO connector up to 3A
Power over Ethernet over PoE HAT
The TH1520 used to be advertised at up to 2.5GHz, but now it appears to be down to 1.8GHz. Software support will include Debian, OpenWrt, and Android in Q1 2023, and more operating systems should be supported over time. Here again are some of the benchmarks shared in the initial announcement about the LM4A unit.
Whether the Lichee Pi 4A or Raspberry Pi 4A is faster depends on the specific application since the platforms are close to imperfect Dhrystone and CoreMarks benchmarks. It’s also likely that RISC-V’s performance will improve as the software ecosystem becomes more mature. The Imagination GPU should be faster than the VideoCore VI based on the GFLOPS numbers provided in the specs, but we still don’t know which exact GPU it will be used for.
The company had already shown a 7-unit cluster board based on the LM4A at the time of the first announcement, but it will also release the Lichee Router 4A based on the Lichee Pi 4A SBC, a 6-inch Lichee 4A and a 10.1-inch Lichee Pad 4A all with an LM4A module. .
There are no official prices on the product page, but you can pre-order any of the items mentioned in this post by purchasing one or more $10 coupons that will provide $20 off once the products launch in Q1 2023. We’re getting some pricing guidance on TwitterAs Sipeed says, the Lichee Pi 4A 8GB RAM will cost around $99, and the 16GB RAM model around $140.
Thanks to Jim and Mark for the tip.
Jean-Luc started CNX in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting writing daily news and reviews full-time later in 2011.
CNX Software Support! Donate via Digital currencies or become a sponsor on Patreon
#Lichee #RISCV #SBC #Raspberry #TH1520 #processor #CNX #Software