The LattePanda Alpha SBC is a bit of a beast not only in horse power, but in price. In this video I look at benchmarks on Windows, Linux and OSX and give my perspective on why LattePanda made a big mistake.
So, why do I think the LattePanda Alpha is a big mistake? Well, let’s first have a look what you get on this SBC and then run a few performance benchmarks.
The LattePanda Alpha is a pretty expensive SBC. The Alpha 800 sells for US$300 while the Alpha 864 will set you back US$360. For people living down-under and with the current exchange rate, the Alpha 864 will set you back 500 kangaroo bucks. That’s a pretty hefty price tag.
Fortunately, for me I bought this unit in US dollars.
PCB top – connectivity
So, what do you get for your hard earned money? Starting from the top right working clockwise.
- HDMI capable of 4K @ 60FPS
- Audio jack
- USB Type C – both for power and eDP
- 12v DC header – supporting a wide 10 to 15v. So you could theoretically power this directly from your vehicle’s battery.
- 50 pin GPIO header – and you get two of them.
- Power button header.
- User controlled LED via an Arduino.
- Power LED.
- 3 USB 3.0 ports.
- Arduino reset button.
- RTC battery.
- PWM fan header.
- And power button.
PCB bottom – connectivity
On the flip side we have
- Some connector I haven’t figured out yet.
- M.2 Key-E
- M.2 Key-M
- Touch panel interface
- eDP ribbon connector
- SD slot.
The board I have varies slightly from all online documentation. So I’m guessing that it’s a more recent version. So, you may see this on the bottom side.
PCB bottom – ICs
Moving on to chipsets. LattePanda haven’t released any schematics for these SBCs, but we can poke around a bit on the PCB.
Starting from the top right we have:
I’m gathering that the Arduino is connected to the main board via the RS232 transceiver, USB UART bridge and USB 2.0 hub.
EDIT: The Arduino is actually directly connected to the USB 2.0 hub.
PCB top – ICs
Flipping over to the front again, we have:
A USB Type C power IC, which manages power distribution from the USB Type C connector. Supporting up to 5A @ 20V.
But here’s a 3.3v/8mA DC buck converter, designed for CPUs.
And a couple more unknowns.
And a semi that is a blast from the past, something that you see on almost all desktops. This is the IC that provides UARTs, SMBus and ACPI control, BIOS and other goodies. Running an 8032 MCU.
There’s also the 64GB flash
and the mighty Intel CPU.
Windows GPIO tests
Like the original LattePanda, the Alpha doesn’t boot automatically. So you have to hold down the power button for a couple of seconds, but after that you will see a Windows desktop appear after about 15 seconds. Nice.
You have full control over power off and sleep from Windows, and interestingly, the SBC will shutdown to only 40mA current draw, which is the lowest of all the SBCs I’ve seen.
What about I2C? Using an MCP9808 temperature sensor.
So, out of the box. Everything works as advertised. Nice to see.
Windows Graphics tests
The final FPS scores were… well… decent enough, with the lowest being 12 FPS and the highest 64 FPS. Not surprisingly, this places it alongside an Apple MacBook Pro, which runs the same CPU as the Alpha.
Windows Power and Temperature
During the tests I logged both power and temperature.
With an ambient room temperature of 33C, the max temperature I saw was 86C with an average of 68 and a minimum of 58. The board does get a little toasty, however, and externally I was measuring a max of 52.7C on top, with a max of 57.1C near the CPU underneath.
Enough of Windows testing, let’s move on to Linux. I’ll be using the latest stock Debian install media for my Linux tests. I burnt this to a USB flash drive using Etcher, and chucked that into one of the USB ports.
Getting into the BIOS is as simple as pressing the DEL key many times after you press the power button. Like any decent BIOS there’s a fair amount of options.
But, we want to boot from the USB flash drive, and then progress on with the usual Debian install. Really, there was nothing odd or unusual with the install. It behaved like any other desktop or notebook install with well supported hardware.
Linux Graphics tests
So, first on to some graphics tests. I used the Superposition benchmark from Unigine, which… ah… was a little slow.
Spitting out at the end a measly 4 FPS max. Note that this was with the stock Debian install with no additional graphics driver hacks used. I’ll have to publish a later video with updates to these tests.
And the geeks3d tests were fairly interesting. Tests ranged in performance:
- 6 FPS
- 1 FPS
- 4 FPS
- 96 FPS
- 496 FPS
Playing my YouTube intro video at 1080p had no lag or stuttering,
Network speeds were, of course, lightning fast @ 944 Mbits/s. Apart from graphics, there’s not a heck of a lot you can pin on this SBC.
Linux GPIO tests
You also have access to CPU temperature and frequency control.
Linux Power and Temperature
On the temperature side I saw a maximum of 80C, with an average of 65 and minimum of 58.
Linux Phoronix tests
So, on to Phoronix tests. I ran my usual battery of benchmarks over a couple of days and what were the results?
940Mbit/s ethernet throughput.
Lightning fast on Go, Perl, Python and PHP, out-stripping even the Jetson boards.
Beating the ODROID-XU4 on 3D rendering.
Almost every benchmark, it was beating the current reigning Jetson SBCs by a fair amount.
The only tests where it lost to the Jetson was the tinymembench.
One thing I did notice is that the 12v rail was pretty stable throughout all my tests, with only a 250mV variance and is one of the reasons for the decent stability of this SBC.
So, next on to Mac OSX tests.
One of the main reasons why I wanted this SBC is… well… not only publish a review on it, but also to use it as backup Premiere Pro editing desktop, and I plan to edit my next video using the LattePanda just to see how it goes.
So, I need to install OSX.
OSX Phoronix tests
So, I then ran a bunch of Phoronix tests on OSX to see how it differed with Linux.
SQLite had a pretty huge difference, but this was due to the fact that I used a different slower SSD for Linux than Mac OSX. Linux was, overall, slightly faster in benchmarks from then on, which was due to the fact that OSX runs a lot of extra processes consuming CPU time.
Overall, it was pretty well matched to Linux, which was to be expected.
OSX Power and Temperature
The same could be said for power consumption.
During install it pulled 2.4A with an average of 921mA.
While running Phoronix tests, it hit a peak of 2.3A, with an average of 544mA.
So, for such a great performing SBC, why do I still think it’s a big mistake?
It’s actually not the price, because even though it’s expensive, bang for your buck is pretty good.
It’s not the design of the board – you can power it from a wide 10 to 15v making it suitable for in vehicle use and shuts down to a 40mA quiescent current.
Surprisingly it comes down to the embedded side.
Sure, the Arduino is easily accessible on all O/S platforms, you have access to all the GPIOs and it can run even with the main CPU powered down, but they used a piddly small ATmega32U4. What they should have done is use a much faster, more modern MCU. Any one of the ATSAM series, like the SAMD21 or SAMD51, or STM32 series would have been a much better option.
The way it stands, it looks like the Arduino side of things was just an afterthought that was designed in at the last minute.
Another thing they should have done is not have the Arduino as part of the base PCB, but an add-on. This way they could upgrade the MCU used without experiencing the Intel Curie disaster that happened with the original LattePanda.
I’m also pretty certain that most people who buy this board won’t ever use the Arduino.
Anyway, that about wraps up this review.
Like the NanoPC-T4 review, I’ll need to publish a Part 2 followup video, where I go into 4K multi-head tests and other performance tests.
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