The new Raspberry Pi 4 is here!!

Brunnis

@thelostsoul said in The new Raspberry Pi 4 is here!!:

@Brunnis I somewhere read the heat issue is only with the 4gb version? That would explain why someone else did not the issue on his 2gb. I cannot say where I read it and if it have substance, but do you think this is possible?? As I know besides the RAM, everything else is 100% the same.

I actually work as a hardware engineer and I don't really see how that could be the case. Board power consumption increase? Sure. SoC temperature increase? Doubtful. Just sitting idle, the memory bus is hardly exercised at all. The more likely case here is that some chips simply run cooler than others, i.e. natural variance in chip quality. That could definitely account for several degrees.

@quicksilver said in The new Raspberry Pi 4 is here!!:

@hooperre I think its too early to judge any of these results until we know that the emulators are fully optimized. Plus, standalone mupen64plus runs with significantly less overhead than the libretro cores so im much more interested in seeing an optimized build of mupen64plus.

@Brunnis said in The new Raspberry Pi 4 is here!!:

Looking forward to the planned firmware improvements that are supposed to lower the temp.

I heard it should reduce temps by 3-5C. But even with that improvement its still a fairly warm idle temp.

Yep, that's for the VLI chip firmware upgrade. Apparently they're also trying other stuff as well.

hooperre

@quicksilver Oh, absolutely. Just passing along the information that he did say he was using both cores.

dankcushions

@hooperre said in The new Raspberry Pi 4 is here!!:

@quicksilver said in The new Raspberry Pi 4 is here!!:

@dankcushions said in The new Raspberry Pi 4 is here!!:

i assume those benches are with libretro mupen64plus (next?)

This is what I was wondering as well. If it's the old libretro core that hasn't been updated in years then the test is not really that useful.

On reddit he said that it was with both lr-mupen64plus and lr-mupen64plus-next without much of a difference... for whatever it's worth.

unfortunately it's a bit academic until we're sure we're building with the right flags, and that all the features of the GPU are being used. plus the -next core is a bit of an unknown quantity at the moment if we don't have standalone to compare - retropie has been using standalone for years.

PabOu

@dankcushions said in The new Raspberry Pi 4 is here!!:

@hiulit said in The new Raspberry Pi 4 is here!!:

VideoCore VI graphics, supporting OpenGL ES 3.x

this is HUGE news I think.

Yes, It's the absolute best news about the Pi4 !!! We've had to deal with so many (not really but kinda broken) wrappers until now...

retropi19

A question if i update retropie to buster is there a list of non working emulators/functions etc.

mitu

@retropi19 said in The new Raspberry Pi 4 is here!!:

A question if i update retropie to buster is there a list of non working emulators/functions etc.

Not at the moment, the transition will happen after 4.5 (based on Stretch) is released. Since Pi4 is only supported on Buster, it will be part of the support that will be added for Pi4.

Yarmongrel

So it seems that DevilutionX does pretty well, to the point that Modern Vintage Gamer even ported it to the Switch with full analogue stick support. Would there be a chance to include DevilutionX on Retropie?

Ecks

@Brunnis said in The new Raspberry Pi 4 is here!!:

@retropi19 They don’t deliver the Pis in anti static bags anymore. The little paper like sheet below the board apparently protects it in a similar way. They did the same at least on the Pi 3 B+.

I will receive a 4GB version on Monday. I only really wanted/needed a 2GB version, but it appeared the 4GB was going to be delivered sooner, so I ordered one of each. Good call, since the 4GB got delivered earlier, at least from this supplier.

No idea where you got your 3B+ from but when i bought mine back then it came in a anti static bag so my guess would be that yours was like they ran out of the bags.

Brunnis

@Ecks No, they didn’t run out of plastic bags. Of course not. It’s even been explained by the Raspberry Pi folks.

Bearwynn

Hi i'm new here, but I've been keeping track of this thread since the pi 4 came out.

I recieved mine yesterday (4GB version)and I've spent the whole day overclocking and stress testing it, I've discovered that with an over_voltage setting of 6:

GPU caps out at 750Mhz (a 50% increase from stock!) I tested this by loading a full version of minecraft java 1.12.2 and playing for intervals. Never had any graphical artifacts and generally the higher it got the less frame dips there were and the higher the average FPS, reaching aroun 55fps average at the 750Mhz cap. It also had optifine installed and was running at a render distance of 4 chunks.

CPU as high as 2Ghz (I decided to stop there because at no point will I ever need more than that on a raspberry pi) however it definitely does lose performance after 1.75Ghz. I have no idea why that is, as the cpu can definitely go higher than that.

of course there is the fact that some people are reporting that overclocking the GPU makes the CPU perform worse regardless of clocks, so more investigation needed there. As there are games that are more intense on one or the other, it may be that two overclocking settings will need to be used (one for CPU intensive games and one for GPU intensive games). I've also managed to keep temperatures at or around 55C at full load by using a RPi 3B+ compatable cooler (the double fan one from geekpi).

Also overclocks aren't all equal, so this is just an example of what I was able to achieve. I don't know what implications this all has for the Retropie community but I hope this information helps people's speculation and analysis.

quicksilver

@Bearwynn current firmware limits the CPU to 1750mhz. Ssh into your pi while the ARM frequency is set >1750mhz and from terminal run

vcgencmd measure_clock arm

Something tells me the performance loss you are seeing is because CPU frequencies above 1750mhz are actually underclocking your CPU.

retropi19

@Bearwynn im think of taking this

https://www.ebay.com/itm/Latest-CNC-Aluminum-Alloy-Case-Enclosure-w-Cooling-Fan-for-Raspberry-Pi-4/254277987978?hash=item3b34262e8a:g:MMUAAOSwJQxdFQuL

do the fans make a lot of noise you know?

if you dont know does the double fan you used makes noise?

thanks

shavecat

@retropi19
i have it for the 3b+ (double fan)
no noise and really good.

Bearwynn

@quicksilver this is a good idea, I'll get on and try this out tonight then get back to you.

(Off topic but, I actually have to go to work today to teach children python on raspberry pi!)

Bearwynn

@retropi19 that's listed as a raspberry pi 4 case but the fact it has the heatsink part on the bottom side with the square on the middle means it's for older pi's that had the ram underneath.

It might be compatible but I wouldn't be able to confirm that.

The one I used was this: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F254219981743

I have one for my Raspberry Pi 3 which is relatively silent,
But this one which I have for my Raspberry Pi 4 is much louder. If silence is the name of the game you're definitely better off getting a small 5v noctua fan for around £10 and finding a way to attach that to a heat sink or a case.

retropi19

i dont have a raspberry pi 3b+
which one you have for the Rpi4?

Bearwynn

@retropi19 the one that I linked is the one that I have for the Raspberry Pi 4

Bearwynn

@quicksilver I have tested this now and you're correct, anything above 1750Mhz and the raspberry pi 4 will underclock itself to exactly 1Ghz.

Interestingly, it also underclocks the minimum clock speed to about 300Mhz, down from 600Mhz

quicksilver

@Bearwynn I think I read somewhere that there will be a firmware update to change that limit. Perhaps you could try updating to see if it's already available?

Brunnis

Spent an hour or so tonight and now have RetroArch (with the XMB interface) running on my Pi 4 on Raspbian Buster Lite (i.e. I'm not running it from the Raspbian desktop). I also built snes9x2010 as a test (this required modifying the makefile slightly) and ran SMW2: Yoshi's Island as a test. The spinning island scene runs at 148 FPS. No time to test anything else yet.

Ohh, I noticed one issue: There is major tearing and some stuttering in both the XMB GUI and during gameplay. Something's not working as it should when it comes to updating the display. Maybe a GPU driver issue?