No Raspberry Pi 4 in 2019.
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@Clyde said in No Raspberry Pi 4 in 2019.:
@thelostsoul said in No Raspberry Pi 4 in 2019.:
For me its ok not having a new generation of Raspi this year. :-)
Same here. My Pi 3b (without +) runs all the systems that I need in my upright arcade cabinet, and I have too many games to play anyway. For anything else I have my Linux PCs (1 Tower PC that I seldom use nowadays, 1 Mini PC, and 1 Laptop).
Right - For Retropie my 3B+ is all I need/wanted for now...
I had hoped for a new Raspi with native HEVC and (extra wish) with 10bit decoding for h264/h265 (no, i am not asking about 12bit), but well - that can wait (as HD HEVC decoding in Software with the latest OSMC/KODI installs is as smooth as it can get (no dropouts/lags/etc))And as said, the Raspi is a Tinker Board... Playing around with a Breadboard and some sensors/actuators/whatsoever is addictive as retrogaming and more so if you have kids -> gaming can be fun (for kids: building your own ones in scratch or similiar visual programming languages is even more fun), but building your own devices that are controlled via the raspi is so... sooo much more an experience (and yes education) - and comparing both communities from outside their respective filter bubble, I am not sure which one has more "followers", but my bet would be on side of the non-emulation tinkers (with a huge overlap of people belonging to both sides education/edutainment/tinker and retrogaming/tinker EDIT: ok, media-center only people could be considered as another group (I know at least 2 People who only bought their Raspi to be used as a MediaCenter (KODI) and nothing else))...
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@Ashpool said in No Raspberry Pi 4 in 2019.:
comparing both communities from outside their respective filter bubble, I am not sure which one has more "followers", but my bet would be on side of the non-emulation tinkers
Mine would be, too. Just looking at all the projects that are featured on https://www.raspberrypi.org, I'm astonished every time what people can and will do when they're given such an open little allrounder. Even many scientists use it for their research!
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You also cant compare Odroid to the Pi as they are for two separate markets.
The Pi has multiple options and its used in thousands of different applications.
Obviously here, people are about the gaming, but that is a very small part of the pi.
Another huge difference is the fact the pi uses its memory quite well when compared to the Odroid. People speak a lot about specs, but those who have programmed or worked on games knows that specs don't mean a damn if the programming cant talk to the system correctly.
In speed tests, the Odroid in its native Ubuntu runs some apps slower then Pi on its native OS.
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@UDb23 this made me sad :(
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https://coral.withgoogle.com/products/dev-board/
Is this Google's RPi4?
Edge TPU Module (SOM)
NXP i.MX 8M SOC (Quad-core Cortex-A53, plus Cortex-M4F)
Google Edge TPU ML accelerator coprocessor
Cryptographic coprocessor
Wi-Fi 2x2 MIMO (802.11b/g/n/ac 2.4/5GHz)
Bluetooth 4.1
8GB eMMC
1GB LPDDR4
USB connections
USB Type-C power port (5V DC)
USB 3.0 Type-C OTG port
USB 3.0 Type-A host port
USB 2.0 Micro-B serial console port
Audio connections
3.5mm audio jack (CTIA compliant)
Digital PDM microphone (x2)
2.54mm 4-pin terminal for stereo speakers
Video connections
HDMI 2.0a (full size)
39-pin FFC connector for MIPI-DSI display (4-lane)
24-pin FFC connector for MIPI-CSI2 camera (4-lane)
MicroSD card slot
Gigabit Ethernet port
40-pin GPIO expansion header
Supports Mendel Linux (derivative of Debian) -
@dankcushions said in No Raspberry Pi 4 in 2019.:
there's also been engineers on the RPI forum saying they know what it's going to be (i can't find the link), so i think upton is being a little bit evasive for whatever reason. i'm pretty sure they know the design at this point.
I found an old thread on the RPi forums from November where jamesh ("Principal Software Engineer at Raspberry Pi (Trading) Ltd.") writes a number of interesting comments regarding the Pi 4:
Regarding whether the Pi 4 will be evolutionary or revolutionary:
https://www.raspberrypi.org/forums/viewtopic.php?t=226958#p1392095Revolutionary. The Pi4 looks pretty good to me! 5 and 6 also have impressive specs, although subject to change this far ahead, and there's a lot of work required for them.
Meanwhile, enjoy the current range, it's a while yet before the Pi4 comes out.
https://www.raspberrypi.org/forums/viewtopic.php?t=226958#p1392129
We also have a roadmap for the next 5 years. Which could change, but not the Pi4, that's pretty much set in stone.
I doubt anything wil change on the Pi4, too far along in development, so the sword wil remain firmly installed in the stone.
As response to a comment quoting Upton as saying the following back in 2017: "It's a long road to get to Pi 4," Upton said, "but we'll get there eventually."
https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=226958&start=75#p1399467Eventually. Lots of work to do...
I'd say this paints a slightly different picture compared to the Upton quotes from Toms Hardware. I didn't really get the impression from Upton that the Pi 4 is pretty much set in stone. To be honest though, I would be quite surprised if it wasn't set in stone at this point in time.
It's pretty clear that we're unlikely to see the Pi 4 for yet a while, though. I'm guessing for Pi Day in a year's time (but obviously still hoping to be shocked by an announcement this coming Thursday :D).
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jamesh on the Raspberry Pi forums March 26 2019:
Pi4 feature set IS set in stone. Of course, I'm not going to say what that feature set is, but it's pretty cool.
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@mitu Or they’ve gone for a 12/14/16 nm class manufacturing process, enabling them to drastically lower power consumption while still providing a rough doubling of performance.
One can dream.
EDIT: To expand slightly on that. People widely believe 28 nm will be used for the Pi 4. I'm not so sure about that. 28 nm is rather old now and has been used for cheap SBCs for years. 40nm was just ~3 years old when the first Pi launched. 28 nm is now ~7 years old already and will probably be at least 8 years old when the Pi 4 launches. Now that the RPi Foundation takes the rather large step to design a completely new SoC for the Pi 4, I'd guess that they'd try to be as forward looking as they can afford, in order to be able to build a couple of future SoC variants on the same process. They can pretty much guarantee some rather large chip volumes to the foundry as well.
Also, they'll probably want to lower the power consumption on the Pi 4 compared to the Pi 3 B+ or even Pi 3. Power consumption has ballooned because they've been stuck on 40 nm and because they've wanted to squeeze every bit of performance out of the SoC. That has lead to power consumption figures that I'm guessing they're not all that happy with. Besides pushing the USB Micro-B capabilities for power delivery, it is incredibly easy to make the SoC throttle without additional cooling (two integer heavy threads will do the trick within minutes). Even with 28 nm it may be hard to combine both a decent power consumption reduction and a large performance increase.
28 nm is probably a lot cheaper than the more recent processes, though, so it's entirely possible that it is the only feasible process in order to meet the ~$35 target.
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Someone on the raspberry pi forums asked Jamesh what "cool" meant to him. His response is below :D
"Cool is not an attitude - It's a state of mind. Imagine an eagle flying through the Rocky Mountains, suddenly, it spies its prey, and falls, falls, falls, it's wings guiding it, but to what?
Think of the primitive thoughts cascading through the eagles mind as it plummets towards the rocks below. That is the Pi4."
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What if we have a little guessing game on what the Raspberry Pi 4 will be and then we can see when it launches who was closest?
It's easy to come up with ideas for improvements, but it's much harder to determine what's realistic given the obvious cost constraints. Also, the Raspberry Pi Foundation has stated multiple times that they will only consider a feature if it is of high importance to a very large part of its user base.
Here's my optimistic but hopefully not entirely unrealistic guess:
SoC:
- 12/14/16 nm class SoC
- Cortex-A73 (4 cores, ~1.6 GHz) -> 100-150 % performance improvement compared to Pi 3 B+
- VideoCore V -> More than 100 % performance improvement compared to Pi 3 B+
RAM:
- 2GB LPDDR3
Interfaces:
- HDMI 2.X (4K, 60 Hz)
- 2xUSB3
- 2xUSB2
- Each USB port is a host port (i.e. no integrated hub)
- Gigabit Ethernet (capable of 900 Mbps+) on its own interface (i.e. not attached to USB)
- SD card: UHS-I 208 MHz (up to 104 MB/s)
- Micro-USB power
Price:
- 35 USD
Form factor:
- Same physical size. Similar or identical connector placement. Might even be compatible with most old cases.
Power consumption:
- Approximately 500 mW per core. Similar to Pi 3B and ~30 % lower than Pi 3 B+.
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@Brunnis
Here is my prediction I made in January. At least we agree on RAM, GPU, USB and HDMI. I forgot the Gigabit Ethernet. About "Each USB port is a host port (i.e. no integrated hub)", why in the first place did they use an integrated hub? For cost saving, does it make any much difference for "most" users or is it just a very specific case? The cpu of my choice is much more powerful and probably isn't realistic, but I also took a price tag of $ 50 in perspective. The Raspberry Pi foundation already said they will stay at $ 35 price point, so this is very unlikely. I wish there would be a powerful pro version of the regular Pi and I am sure that I am not the only person.Warning: The below link to Cortex-A75 Wikipedia article is pointing to wrong A73. Here the right link: https://en.wikipedia.org/wiki/ARM_Cortex-A75
@thelostsoul said in Raspberry Pi4 Speculation:
I wouldn't mind if the starting price would be higher than the previous entries. The previous cpu was "Broadcom BCM2837B0 VideoCore IV" and "Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz". Wikipedia page about VideoCore: https://en.wikipedia.org/wiki/VideoCore
Spec:
- CPU: Cortex-A75 (ARMv8-A) 64-bit SoC @ 2.8GHz
- SOC: BCM7251
- GPU: VideoCore V (500Mhz? compared to 400Mhz on Pi3)
- 16GB fast internal space
- DDR3 2GB RAM (compared to DDR2 1GB)
Connections:
- 4K/60Hz HDMI output (or dual 1080p/60Hz output)
- 2 x USB 2.0 Type A (our current for legacy)
- 2 x USB 3.2 Type C (the smaller new type)
- 1 x SATA revision 3.0 (6 Gbit/s) (probably not)
- onboard power and reset switch (probably not)
- dedicated RCA Composite Video output (probably not)
50 $/€ initial price tag (instead 35 of the previous). Ok, this is more like a wishlist. I even don't know if these
cpu and gpu and soc would work together and if this is realistic in that price point. But hey, I expect groundbreaking changes without compatible with older version. -
@thelostsoul
Nice! Regarding the CPU, Cortex-A75 is probably hard to justify due to (probably) higher licensing cost, larger die area and higher power consumption. A73 is just more economic, especially since we can't expect the Pi 4 to use a more modern process than 16/14/12 nm.BTW, the reason I suggest rather low frequencies is that I expect them to optimize the Pi 4 for sustained performance during passive cooling. A core frequency exceeding 2 GHz will almost certainly result in quick down-clocking after the core reaches high temperatures. The side effect of low default frequencies would likely be a pretty high overclocking potential, given extra cooling.
Regarding USB host ports: Since they're building an SoC from scratch and die area for a USB host port probably isn't very large, I'm guessing it makes sense to forgo using a hub. The big plus with not using a hub is that each port has its own bandwidth and doesn't have to share it with the others.
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@Brunnis I agree on the cpu, the A73 with lower clocks sounds much more realistic. About the USB host ports, if there are USB 3 and 2, then at least those two need its own host, right?
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@thelostsoul said in No Raspberry Pi 4 in 2019.:
About the USB host ports, if there are USB 3 and 2, then at least those two need its own host, right?
EDITED: Actually, it seems it's possible to have a combined USB2/USB3 hub hanging off a USB3 host port. So, a single USB3 host port combined with a hub could be a real alternative. The design will probably be dictated by cost.
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Probably shooting my .... guesses early here, but I don't suppose we think the Pi folks will be able to put some kind of AV1 decoder chip / acceleration on the v4 in 2020?
Be nice to be able to do that, I know it's coming along rapidly. (AV1, not the Pi)
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You can get an Intel NUC generation 6 for not much more than a pi + case + power/sd/etc and they will run up to PS1 level pretty easily.
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OUT NOW!
3 versions:
1GB ram, 2GB ram, 4GB ram -
@Brunnis said in No Raspberry Pi 4 in 2019.:
Here's my optimistic but hopefully not entirely unrealistic guess:
SoC:
- 12/14/16 nm class SoC
- Cortex-A73 (4 cores, ~1.6 GHz) -> 100-150 % performance improvement compared to Pi 3 B+
- VideoCore V -> More than 100 % performance improvement compared to Pi 3 B+
RAM:
- 2GB LPDDR3
Interfaces:
- HDMI 2.X (4K, 60 Hz)
- 2xUSB3
- 2xUSB2
- Each USB port is a host port (i.e. no integrated hub)
- Gigabit Ethernet (capable of 900 Mbps+) on its own interface (i.e. not attached to USB)
- SD card: UHS-I 208 MHz (up to 104 MB/s)
- Micro-USB power
Price:
- 35 USD
Form factor:
- Same physical size. Similar or identical connector placement. Might even be compatible with most old cases.
Power consumption:
- Approximately 500 mW per core. Similar to Pi 3B and ~30 % lower than Pi 3 B+.
So, it turns out I wasn't completely off with my guesswork! The CPU performance is in line with what I expected, but they chose to go with the A72 instead of the A73. The A72 and A73 perform very similarly, but the A73 is slightly more efficient.
We don't know much about the GPU right now, but I kind of doubt it's 2x the old one, like I had hoped.
Overall though, this looks like a truly great upgrade. The biggest "issue" I see with it is that they weren't able to go with a 16/14/12 nm class manufacturing process for the new chip. The first tests indicate even higher power consumption than the Pi 3B+. A more recent process node would have helped tremendously with that, but I'm guessing it would haven increased the price of the board.
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@Brunnis What do you think of the different RAM options? Which one will you be getting? (if you are getting one...)
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