Database Users

New Rockchip processors announced: RK3229 and RK3399

New ROCKCHIP processors announced at CES:
RK3229 and RK3399
These new chips might possibly be used for the new HU models later this year.
http://liliputing.com/2016/01/rockchip-introduces-rk3299-rk3399-chips-with-4k-video-support.html
Original news (italian):
http://notebookitalia.it/rockchip-rk3229-rk3399-mini-pc-foto-video-prova-22947

RK3399 board with Android 6 and Ubuntu 16.04 dual boot
Hello,
There is a new kickstarter with the Firefly RK3399 board which already reached $20.000 in five days.
The Remix IO hardware is nice but Remix guys stated that they will not support a Linux distribution and that their bootloader is locked. The Firefly board will offer both Android and Ubuntu.
More datails can be found on kickstarter.com and my blog bitkistl.com. The firefly RK3399 board offers up to 4 GB RAM.
Best Regards,
Peter Bauer

So the slower one has 4xA7. Those are branded as "ultra high efficiency" cores. In other words, absolutely useless in this application. Probably ok for running the logic that runs a microwave oven.
The faster one has a couple of A72's and a couple of A53s. So think of that as a DUAL core A72 that has a lower power mode. While the A72's are interesting, the big.little concept really has no place in a car head unit, since you have effectively unlimited power to run them. Also note that just because they are A72's doesn't mean that rockchip's implementation will perform decently -- they seem pretty good at getting REALLY crap performance out of their hardware. For instance, SPECIFICATION wise, the RK3188 should be nearly equal to a Snapdragon 600 (I would say within about 20%). Yet the Snapdragon 600 will make a make a COMPLETE FOOL of the RK3188 -- there is simply no comparison.
I would judge that this RK3399 will NOT be at all impressive when compared with the Intel x3-C3230RK that is currently being used in head units. It might be *similar* in overall performance, but the stability will be poor like the RK30xx/31xx, and they'll hoard the source as they always do. At least with the Intel, despite being manufactured in partnership with rockchip, the needed source code is available.

What is The Best Android Head Unit?

What is your favorite Android head unit? I have a 2006 F150 XLT that has the standard radio in it. The world of Android head units is a bit daunting, there is such a wide price range.
Are any of the brands you see on Amazon (such as Panelo, Masione, Joying, Atoto, Henhaoro, etc) any good? I don't want to spend a lot on a head unit, as there are other modifications I want to save that money for. This one caught my eye, but there is only one review, so I don't have anything to go on really: https://www.amazon.com/dp/B07196PZDY/_encoding=UTF8?coliid=I19FLMACLW5HJC&colid=299XVYDL2TUOK
What I like about that one is that it has a bunch of things I want, like Android 5.1 (recent enough not to cause cancer every time I use it), it doesn't have the DVD slot (which I wouldn't use anyway), it has an external mic input (I have seen that the included ones are usually horrible), it supports a backup camera, and it has phone mirroring function.
What is your favorite Android head unit? What if price was not in consideration? Thanks!

I've been wondering the same as I plan on getting one soon, which one did you finally buy and how did you find it ?
If not can someone please tell us what is the best all around (smooth & stable ,no overheating issues,good software support android head unit in the market right now , PX3 , PX5 or Intel Sofia based ?
Thanks

Right now I think px5 is best. It is fast, doesn't overheat and has good custom firmware

vassandrei said:
Right now I think px5 is best. It is fast, doesn't overheat and has good custom firmware
Click to expand...
Click to collapse
Compared to the Joying units with Intel Sofia from what I have read :
Pro.
1. like Andrei said, the PX5 units heat up a lot less than Intel Sofia but the temp still hovers around 50-60C so it's not exactly running cool
The Intel Sofia platform runs quite hot 70-80C and a few users had their units gave up on them. Joying is replacing them under warranty.
In my opinion the Sofia platform needs a decent heatsink for the SoM and active cooling.
2. PX5 units have 2 custom roms already... definitely a lot more software customisation compared to the Joying Sofia units
3. a way bigger user base (on the PX5) and a lot more skilled people willing to make the platform great
4. PX5 units still have an dvd/cd unit build in - it's almost useless these days but some still want one
Cons
1. some PX5 units have issue with the Wi-Fi signal strength and transfer speed (bad design, cheap antennas, they cut corners for a few cents... on some units you can correct the issue).
2. Some PX5 units have limited sleep mode implemented - only a few hours compared to the Joying that has 72 hours or so - the instant power on is limited on some units
3. PX5 Wi-fi issues when used at the same with with BT
4. a lot of people complain about an annoying echo when taking calls on the PX5 units
5. you can't tether via BT on the PX5 (still the same poor BT implementation that they are doing it for the past 4 years now.... very, very poor design)
6. read a lot of sad stories with poor customer support from some sellers of the PX5 units - you need to buy an unit from a seller with good reputation
Overall, the hardware in the Joying Sofia units is better in my opinion than the PX5 units but on the software customization side the Joying loses to the PX5
If Joying Sofia would have a bigger user base here and some skilled programmers things could be so much better.... but there's still time

edit said:
Compared to the Joying units with Intel Sofia from what I have read :
Pro.
1. like Andrei said, the PX5 units heat up a lot less than Intel Sofia but the temp still hovers around 50-60C so it's not exactly running cool
The Intel Sofia platform runs quite hot 70-80C and a few users had their units gave up on them. Joying is replacing them under warranty.
In my opinion the Sofia platform needs a decent heatsink for the SoM and active cooling.
2. PX5 units have 2 custom roms already... definitely a lot more software customisation compared to the Joying Sofia units
3. a way bigger user base (on the PX5) and a lot more skilled people willing to make the platform great
4. PX5 units still have an dvd/cd unit build in - it's almost useless these days but some still want one
Cons
1. some PX5 units have issue with the Wi-Fi signal strength and transfer speed (bad design, cheap antennas, they cut corners for a few cents... on some units you can correct the issue).
2. Some PX5 units have limited sleep mode implemented - only a few hours compared to the Joying that has 72 hours or so - the instant power on is limited on some units
3. PX5 Wi-fi issues when used at the same with with BT
4. a lot of people complain about an annoying echo when taking calls on the PX5 units
5. you can't tether via BT on the PX5 (still the same poor BT implementation that they are doing it for the past 4 years now.... very, very poor design)
6. read a lot of sad stories with poor customer support from some sellers of the PX5 units - you need to buy an unit from a seller with good reputation
Overall, the hardware in the Joying Sofia units is better in my opinion than the PX5 units but on the software customization side the Joying loses to the PX5
If Joying Sofia would have a bigger user base here and some skilled programmers things could be so much better.... but there's still time
Click to expand...
Click to collapse
Thank you both for your responses, so If I get It right the PX5 is better performancewise and overall but with some issues partly due to it's cheap design,however with it's larger user base the software can be improved and the Intel Sofia has a better hardware design and stable software but tends to overheat.
Not really an easy choice to make ,as of now I'm favoring the Joying with the Intel Sofia because it appears to have a better hardware design and a stable software for basic use (Waze, Spotify...) , I'll probably have to install a fan/heatsink later and hope for the best.
if anyone has any additional return/advice/info on the PX5 or Intel Sofia based units,please post it as I still haven't decided yet and won't make the purchase until next week.

metalic4u said:
Thank you both for your responses, so If I get It right the PX5 is better performancewise and overall but with some issues partly due to it's cheap design,however with it's larger user base the software can be improved and the Intel Sofia has a better hardware design and stable software but tends to overheat.
Not really an easy choice to make ,as of now I'm favoring the Joying with the Intel Sofia because it appears to have a better hardware design and a stable software for basic use (Waze, Spotify...) , I'll probably have to install a fan/heatsink later and hope for the best.
if anyone has any additional return/advice/info on the PX5 or Intel Sofia based units,please post it as I still haven't decided yet and won't make the purchase until next week.
Click to expand...
Click to collapse
Honestly I had a joying Sofia before my px5, and the speed on the px5 platform is the same if not better. The fact that it's ARM based is better for overall compatibility. I've not had any problems with wifi so far (but I have a USB wifi hotspot in the car that I connect to), and I have no issues pairing with my phone either. Seriously in my opinion the thing that makes or breaks the whole experience is software, and I had a much better experience with the px5 platform software-wise so far. Xposed modules are super handy and add a lot of functionality that isn't available on the intel sofia platform.

vassandrei said:
Honestly I had a joying Sofia before my px5, and the speed on the px5 platform is the same if not better. The fact that it's ARM based is better for overall compatibility. I've not had any problems with wifi so far (but I have a USB wifi hotspot in the car that I connect to), and I have no issues pairing with my phone either. Seriously in my opinion the thing that makes or breaks the whole experience is software, and I had a much better experience with the px5 platform software-wise so far. Xposed modules are super handy and add a lot of functionality that isn't available on the intel sofia platform.
Click to expand...
Click to collapse
I'm considering the PX5 unit too as it would save me the trouble with Joying units overheating issues, Any brand recommendation / reference number for a reliable PX5 unit with good users experience?
Thanks.

Be glad to have a brand recommendation for the PX5 as well.

Hey, Blenderite just check this list in this site http://www.colereview.com/best-android-auto-head-unit/ and you can make a good choice of best android auto head unit.
For me, the best one is: The 7 inch Android 6.0 Marshmallow Car Stereo

Geekbench Comparison Joying Sofia 3GR 2GB versus Joying PX5 2GB

Hi,
I'm getting interested in a comparison. We discuss about the fact that 4-core Sofia 3GR units are faster than 8-core PX5 units. But are they? I really would like to know.
Some users say that benchmarks can't be compared, but those users are sometimes somewhat "biased" and it is not true. You can't compare several apps with each other. However, if the same app, Geekbench 4 in this case, does the exact same (software "rendering") graphical performance on one unit versus another unit, or do a Dijkstra calculation(1), you can definitely compare units.
Of course it is highly dependent in how optimized your Android version for your unit is to get the overall performance and user experience. We have already experienced that the @gtxaspec Custom Rom gives a smoother experience on the Sofia 3GR units than the Joying stock ROM. So a good ROM can improve a slower CPU, and vice versa.
And why Geekbench 4 instead of Antutu?
The Joying/FYT/SYU software on the Sofia 3GR "knows" Antutu. When it detects Antutu is running, it optimizes a number of things to get the highest scores. I don't want that, and I don't know how much "Antutu optimization" is taking place between the Sofia units and the PX5 units.
The Joying Sofia 3 GR units come in two flavours: The slightly older 5009 SOMs and the newer 6021 SOMs.
The 5009 SOM runs at 1040 MHz. The 6021 runs at 1200 MHz.
I have a 6021.
CPU scores: https://browser.geekbench.com/v4/cpu/8132254
GPU scores: https://browser.geekbench.com/v4/compute/2340164
I'm very interested in both the Single core as multi-core values. The single-core values determine how fast an single-threaded app runs on a single core, and a lot of apps, including the Joying ones, are still single-threaded.
And of course also in the multi-core scores when heavy loaded systems should perform, and where multi-threaded apps (the Google apps like Chrome, Google Maps, etc) will highly benefit. (Note that using more than 3 cores hardly improves a multi-threaded apps performance, but in a heavy loaded system a "few cores more" might be giving a difference there).
Again: I would really like to see GeekBench 4 scores for a 2GB PX5 Joying as well (and maybe also a 5009 Sofia 3GR). Not other apps scores (like Antutu) as you really can't compare those among each other.
The results will not say anything about user experience, buggy or great apps, or overall experience. It will simply compare "raw power".
_____________________________________
(1): The Dijkstra algorithm is a "shortest path" algorithm. The A-* algorithm is a parametrisable, optimzed form of the Dijkstra algorithm. The A-* algorithm is used in 9 out of 10 Navigation apps to (re)calculate the routes).

Comparing arm vs x86...its tough to get a good comparison, even using geekbench. You could compare app launch times etc...
Technically speaking, the type of ARM cores in the px5... Are "slower" than the x86 counterparts. I don't think you'll get any real world results from benchmarks.
The px5 is old too...as well as the Intel. At the time the x86 was a better contender.
Just thinking out loud.

gtxaspec said:
Comparing arm vs x86...its tough to get a good comparison, even using geekbench. You could compare app launch times etc...
Technically speaking, the type of ARM cores in the px5... Are "slower" than the x86 counterparts. I don't think you'll get any real world results from benchmarks.
The px5 is old too...as well as the Intel. At the time the x86 was a better contender.
Just thinking out loud.
Click to expand...
Click to collapse
Yes, We had these discussions on the old Carjoying forum as well were especially lbdroid used these arguments. And that is exactly why I don't want to compare "real live experience" with simple raw power calculations.
Until now I never saw a real comparison on CPU/GPU level, so until now everybody is actually not knowing what he/she is talking about without delivering/comparing hard numbers (and I really don't want to offend you).
And don't forget: Also Intel, Rockchip and AMD are using benchmarks to compare them: Are they really that untrustworthy then? And differences between Pentiums, Atoms, Celerons, Xeons, Core i-3/i-5/i-7 are compared with each other despite big differences in their architecture, cores, production manufacturing optimizations, power/battery optimizations, clockspeeds, burst speeds, L1/L2/L3 cache and so on.
And yes: Finally in the end it only matters whether you run a light-weight linux or a bloaty Windows 10 on some light-weight hardware, but at least you know the underlying capabilities of the hardware.
So again: I really would like to see numbers, not meanings without numbers based on gut feeling and superficial specs sheets.
I have a very technical background and only trust numbers. Theories are not more than that, until they are proven in real life or by numbers.
(It is the same with bigger or smaller fans to cool the unit. Some users say the bigger, the better. From my technical background I say those big fans in those small confined spaces are useless, but also there I don't provide the numbers, so actually I don't know and nobody else knows and is only acting on gut feeling, until somebody really does the measurements)

surfer63 said:
Yes, We had these discussions on the old Carjoying forum as well were especially lbdroid used these arguments. And that is exactly why I don't want to compare "real live experience" with simple raw power calculations.
Until now I never saw a real comparison on CPU/GPU level, so until now everybody is actually not knowing what he/she is talking about without delivering/comparing hard numbers (and I really don't want to offend you).
And don't forget: Also Intel, Rockchip and AMD are using benchmarks to compare them: Are they really that untrustworthy then? And differences between Pentiums, Atoms, Celerons, Xeons, Core i-3/i-5/i-7 are compared with each other despite big differences in their architecture, cores, production manufacturing optimizations, power/battery optimizations, clockspeeds, burst speeds, L1/L2/L3 cache and so on.
And yes: Finally in the end it only matters whether you run a light-weight linux or a bloaty Windows 10 on some light-weight hardware, but at least you know the underlying capabilities of the hardware.
So again: I really would like to see numbers, not meanings without numbers based on gut feeling and superficial specs sheets.
I have a very technical background and only trust numbers. Theories are not more than that, until they are proven in real life or by numbers.
(It is the same with bigger or smaller fans to cool the unit. Some users say the bigger, the better. From my technical background I say those big fans in those small confined spaces are useless, but also there I don't provide the numbers, so actually I don't know and nobody else knows and is only acting on gut feeling, until somebody really does the measurements)
Click to expand...
Click to collapse
That's ok, I don't ever get offended at all lol.
Isn't the "real live experience" what matters? For all we know, RK could have a bad processor design which doesn't push the cores to the intended performance specification from ARM...
So, now my question is...what is the best way to compare different processor architectures?
Aside from using "benchmarking" applications...?
I agree most companies do use benchmarks to compare, but aren't they typically within a similar or set computing architecture? Reminds me of PPC vs x86 back in the day .
Another issue that I seen is some benchmarking applications don't have native x86 libraries so on the Intel Android platform the benchmarking is run using Houdini which is an emulator and it's slow

gtxaspec said:
Isn't the "real live experience" what matters? For all we know, RK could have a bad processor design which doesn't push the cores to the intended performance specification from ARM...
Click to expand...
Click to collapse
Of course that is what matters.
That is exactly why I want to know. Is the Joying FYT/SYU PX5 much slower, equal or faster than a Sofia 3GR. And if it is much slower: is it due to drivers, bad apps or the CPU? and if it is much faster, the same questions.
It is the same as saying the one car uses much more gas than the other and is much slower, until it turns out that car is pulling a caravan.
That is why I wan to know what the car does, although the real life experience might be different due to other factors.
I use Magic Earth as navigation app. I experience less optimization on Intel compared to ARM. So would it perform much better on an ARM PX5 compared to a Sofia 3GR?
After all: Android is by far the biggest and most optimized for ARM.
For that reason the PX5 could even be a much better option than the Sofia 3GR despite completely unproven arguments about being a better CPU versus "slow" A53 cores.

@surfer63 Now that you own both a Sofia 3GR and a PX5 unit, have you done the benchmarks? Which is better? And in your personal opinion, which one "feels" faster in everyday use?

R4m80 said:
@surfer63 Now that you own both a Sofia 3GR and a PX5 unit, have you done the benchmarks? Which is better? And in your personal opinion, which one "feels" faster in everyday use?
Click to expand...
Click to collapse
The PX5. It is definitely faster.
 @ste2002 asked me to do Antutu benchmarks which I did: see here.

Need an advice with processor selection.

Hi, last year i have bought HU with following specification:
SYSTEM (Android 6.0.1) 1GB/16GB
Allwinner QUAD-CORE T3 p3,
Mali-400MP2 .
Unfortunatelly it turns out horribly slow - I have rooted it and tried to speed it up, but without success.
Now I'm considering to buy another one (cheap), I need HU to normal use (google maps + music app + radar warning application) .
Here are my selections:
Android 8.1 1GB/16GB
quad-core T3 K2001M
GPU: Mali-600MP4
Android 8.1 1GB/16GB
quad-core MT8227L "1.3-1.5"
GPU: Mali-600MP4
Most units which I'm interested have these two processors some have also 2GB RAM. Which is better selection? Maybe i should choose someting with 8-core or 2GB ram?
Regards.

The processor is not the only thing that affects the speed, the amount of RAM matters too. Everything you listed has a gig of RAM, that is just too low for today's Android with all the services running in the background. Look for something with at least 2 GB, 4 would be better. The processors you're looking at are no powerhouses either. First they're all 32 bit and very obsolete. Also Allwinner is barely a decent processor for the money. Something from Rockchip or Intel would cost a bit more but you'd get more enjoyment out of it. If you have to keep it cheap maybe a PX30 with at least 2 GB RAM would be a good choice.

nic2k said:
If you have to keep it cheap maybe a PX30 with at least 2 GB RAM would be a good choice.
Click to expand...
Click to collapse
The man is completely right. Nothing with 1GB will perform.
2GB is enough. 4 GB is better.

I agree that 1GB is not enough for todays Android, but this is still car device, not phone. I don't really want to spend lot of money . How about this ?
OS: Android 8.1 Go 1GB/16GB
CPU: Intel 8-core 1.872GHz Intel IA processor
GPU: with Mali-T820 8-core GPU
OS: Android 8.1 2GB/32GB (i think they will be able to install GO version too.)
CPU: High quality MT8227L Quad-core 1.3-1.5 GHz Cortex-A7 processor
GPU: with Mali-600MP4 Quad-core GPU
both fit to my limit 150 $ .

spewaq said:
I agree that 1GB is not enough for todays Android, but this is still car device, not phone. I don't really want to spend lot of money . How about this ?
OS: Android 8.1 Go 1GB/16GB
CPU: Intel 8-core 1.872GHz Intel IA processor
GPU: with Mali-T820 8-core GPU
OS: Android 8.1 2GB/32GB (i think they will be able to install GO version too.)
CPU: High quality MT8227L Quad-core 1.3-1.5 GHz Cortex-A7 processor
GPU: with Mali-600MP4 Quad-core GPU
both fit to my limit 150 $ .
Click to expand...
Click to collapse
a bit stubborn? The first is 1GB. If 2 persons advise to go for at least 2GB: what more advise do you need? If you had searched this forum in advance, you would have seen that everybody advises against 1 GB.
choose and suffer, or choose and enjoy.

That's a really low budget. A $150 will buy you a nice Pioneer or Kenwood traditional stereo or if you want more features get a cheapie Dual or other low end brand. At any rate you will enjoy your choice better then. Those Chinese Android radios have always been a bit of a kludge. It's only in the last couple years that they've been getting almost decent and that's from having a proper amount of RAM and better processors. The one thing that hasn't improved is build quality, they work ok but there's no telling for how long. OTH they're a lot of fun if you can afford it.
The second option you listed is definitely low end but might work good enough. Like Surfer63 said do your research! Don't expect someone else to tell you what to buy. For that HU you can start here. On that first page there's a link to 4PDA too.

Believe me 150$ for car radio is quite a lot in my country To be honest initially I thought 100$ will be enough for my modest needs... I know 4pda I have studied most topics regarding Allwinner and partially this mentioned above . I have some experience with such devices (with 1) I could try to flash it but I have no time for that. In the mean time I have found that there are HU which are fitted to car steering panel better than universal one so decided to buy another. I did not expect that someone tell me what should I buy, however all yours remarks are very valuable for me. Ok I'll read a bit more and buy something, and maybe give some feedback.

Joying Snapdragon 625 vs Unisoc UIS7862 head to head

New user here.
The new Joying headunit with Snapdragon caught my attention, as it runs a Snapdragon 625 chip instead of the Unisoc UIS7862, and command a higher price (£55 diff) . So I did a little more research on their respective performance.
Against my expectation,, almost every metric and benchmark puts the UIS7862 ahead of the Snapdragon 625 by a decent margin, it is almost 4 years newer and on a more advanced 12nm node (instead of 14nm).
More to my suprise, Snapdragon 625 only supports upto 3GB ram, so the 4GB installed in the head unit would not be fully utilized.
Am I missing something blatantly obvious? Should I look at more than just specsheet and benchmark? I am very confused as to which version of the head unit would preform better in the long run. Which one would you choose?
Processor Comparison - Head 2 Head
UNISOC T610 vs Qualcomm Snapdragon 625 - Benchmarks, Tests and Comparisons
www.notebookcheck.net
Qualcomm MSM8953 Snapdragon 625 vs Unisoc UIS7862 Benchmarks, Specs, Performance Comparison and Differences - GadgetVersus
Comparison between Qualcomm MSM8953 Snapdragon 625 and Unisoc UIS7862 with the specifications of the processors, the number of cores, threads, cache memory, also the performance in benchmark platforms such as Geekbench, Passmark, Cinebench or AnTuTu.
gadgetversus.com

marcowong_7 said:
New user here.
The new Joying headunit with Snapdragon caught my attention, as it runs a Snapdragon 625 chip instead of the Unisoc UIS7862, and command a higher price (£55 diff) . So I did a little more research on their respective performance.
Against my expectation,, almost every metric and benchmark puts the UIS7862 ahead of the Snapdragon 625 by a decent margin, it is almost 4 years newer and on a more advanced 12nm node (instead of 14nm).
More to my suprise, Snapdragon 625 only supports upto 3GB ram, so the 4GB installed in the head unit would not be fully utilized.
Am I missing something blatantly obvious? Should I look at more than just specsheet and benchmark? I am very confused as to which version of the head unit would preform better in the long run. Which one would you choose?
Processor Comparison - Head 2 Head
UNISOC T610 vs Qualcomm Snapdragon 625 - Benchmarks, Tests and Comparisons
www.notebookcheck.net
Qualcomm MSM8953 Snapdragon 625 vs Unisoc UIS7862 Benchmarks, Specs, Performance Comparison and Differences - GadgetVersus
Comparison between Qualcomm MSM8953 Snapdragon 625 and Unisoc UIS7862 with the specifications of the processors, the number of cores, threads, cache memory, also the performance in benchmark platforms such as Geekbench, Passmark, Cinebench or AnTuTu.
gadgetversus.com
Click to expand...
Click to collapse
Hi there.
I am currently going down the same rabbit hole, trying to get a new head unit for my 2011 Ford Escape. I even found the same comp pages that you listed in your post.
I have asked Joying support last week some of the same questions you asked here, and they didn't offer any useful details and their one-sentence emails about this topic are very cagey.
Mainly - why is the new Teyes-like UI that they have on the Snapdragon not available on the clearly superior 7862 units, and only on the slower Snapdragon 625? They didn't answer that. If the new UI was available on the 7862 I would not even be doing this research, really. That's the only thing that has me going back and forth. That, and the horrible USA LTE band support on the 7862.
The fact that the slower, less RAM 8xA-53 unit is more expensive than 2xA-75/6xA-55 unit is puzzling.
Saab Unleashed has excellent reviews of these units:
Snapdragon
7862
he reviews the 1920x1200 version, which is yet another dilemma for us
It seems that likes the Snapdragon version mainly for the UI, and in the comments he mentions that the performance is about the same as the 7862 version. Weird.
Since you wrote your post in November 2021 - have you decided on one of these? If so, what was your experience like?

I sold many 7862 unit without problem. Recommend 7862

klaymen2 said:
Hi there.
I am currently going down the same rabbit hole, trying to get a new head unit for my 2011 Ford Escape. I even found the same comp pages that you listed in your post.
I have asked Joying support last week some of the same questions you asked here, and they didn't offer any useful details and their one-sentence emails about this topic are very cagey.
Mainly - why is the new Teyes-like UI that they have on the Snapdragon not available on the clearly superior 7862 units, and only on the slower Snapdragon 625? They didn't answer that. If the new UI was available on the 7862 I would not even be doing this research, really. That's the only thing that has me going back and forth. That, and the horrible USA LTE band support on the 7862.
The fact that the slower, less RAM 8xA-53 unit is more expensive than 2xA-75/6xA-55 unit is puzzling.
Saab Unleashed has excellent reviews of these units:
Snapdragon
7862
he reviews the 1920x1200 version, which is yet another dilemma for us
It seems that likes the Snapdragon version mainly for the UI, and in the comments he mentions that the performance is about the same as the 7862 version. Weird.
Since you wrote your post in November 2021 - have you decided on one of these? If so, what was your experience like?
Click to expand...
Click to collapse
I bought the UIS7862 version, it is running flawlessly with AGAMA launcher. My decision was simple: first, the Teyes launcher seems more buggy from other review, compare to AGAMA launcher which is tried and tested. Second, I am not paying 20% more for 25% less performance and 25% less usable ram. It just does not sit right with me.
I would personally avoid the 1200p as text and icons looks tiny on a higher res screen, which makes it very hard to use while driving.

marcowong_7 said:
I bought the UIS7862 version, it is running flawlessly with AGAMA launcher. My decision was simple: first, the Teyes launcher seems more buggy from other review, compare to AGAMA launcher which is tried and tested. Second, I am not paying 20% more for 25% less performance and 25% less usable ram. It just does not sit right with me.
I would personally avoid the 1200p as text and icons looks tiny on a higher res screen, which makes it very hard to use while driving.
Click to expand...
Click to collapse
That all makes perfect sense.
Thanks for the note about the AGAMA launcher vs Teyes. I ruled out Teyes unit itself but because I liked the look of that launcher I was still considering the Snapdragon Joying unit with the Teyes-like Launder. But the specs and price of that unit compare to the 7862 version just don't make sense.
I will be ordering the 7862 version as well.
Thanks.