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RTX 5090 and Raspberry Pi: Can it game?

scottjg.com

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Re: RTX 5090 and Raspberry Pi: Can it game?

#91
post #29

Earlier quoted context omitted.

It would make a lousy desktop computer even if it was 10x as powerful. - high current 5V USB power supply you probably don't have - HDMI micro port you have like 1 cable for - PCIe through very fragile ribbon cable + hodgepodge of adapters - more adapters needed for SSD - no case, but needs ample airflow - power input is on the side and sticks out GPIO is the killer feature, but I'll be honest, 99% of the hardware ha…

I dunno, I brought a pi 500+ with an SSD, 16GB RAM, little screen, PSU, mouse and cables. It was around £300. It's not super powerful but my young kids use it to surf the net, play Minecraft, do art projects, etc. (we are yet to play with the gpio). I don't get on with the keyboard but otherwise would make a decent development machine for me, considering my development starts with me ssh'ing into some remote VM and r…

You can get much more powerful PCs for much less, e.g.:

https://www.amazon.co.uk/dp/B0CFPRDQY8/

Re: RTX 5090 and Raspberry Pi: Can it game?

#92
post #74
post #29

Earlier quoted context omitted.

It would make a lousy desktop computer even if it was 10x as powerful. - high current 5V USB power supply you probably don't have - HDMI micro port you have like 1 cable for - PCIe through very fragile ribbon cable + hodgepodge of adapters - more adapters needed for SSD - no case, but needs ample airflow - power input is on the side and sticks out GPIO is the killer feature, but I'll be honest, 99% of the hardware ha…

I never really understood how GPIO is a killer feature with them. There are so many ways to get GPIO, from $5 USB dongles to any microcontroller/dev board that's ever exists. What's special about Raspberry Pi GPIO that I'm missing? The only case I can think of is very heavy compute that relies on low latency GPIO related to that compute?

The low latency is the reason why the PiStorm (Amiga CPU accelerator) project works so well on a Pi 2, 3 or 4. (Pi 5 is no longer suitable since the GPIO is now the other side of a PCI-E bus and thus suffers significantly higher latency than on previous models, despite being much faster in terms of throughput.)

Re: RTX 5090 and Raspberry Pi: Can it game?

#93
post #74
post #29

Earlier quoted context omitted.

It would make a lousy desktop computer even if it was 10x as powerful. - high current 5V USB power supply you probably don't have - HDMI micro port you have like 1 cable for - PCIe through very fragile ribbon cable + hodgepodge of adapters - more adapters needed for SSD - no case, but needs ample airflow - power input is on the side and sticks out GPIO is the killer feature, but I'll be honest, 99% of the hardware ha…

I never really understood how GPIO is a killer feature with them. There are so many ways to get GPIO, from $5 USB dongles to any microcontroller/dev board that's ever exists. What's special about Raspberry Pi GPIO that I'm missing? The only case I can think of is very heavy compute that relies on low latency GPIO related to that compute?

In general the best part of the Pi is that it's so stable as a platform. Everyone has the same hardware and generally the same OS so guides online just work - it may be one of the if not the best Linux on the desktop experience I've used personally.

Along with that the gpio is there and ample so it's extremely easy to just start using it.

I do argue an esp 8266 or esp32 are better for a development microcontroller but you have to muck with cabling it up before you can even load a program on it which is a few more extra steps than a Pi

Re: RTX 5090 and Raspberry Pi: Can it game?

#95

This is a funny project. Too many people taking this serious, it is more of a 'can it be done' because the physical interfaces suggest that it should be possible, and then to follow through on it to prove that yes it actually can be done. And tbh much better than I expected it to work. I can imagine that for GPU compute heavy and interconnect bandwidth constrained applications a combination like this might actually b…

Seeing real games and benchmarks makes it more than a party trick, even if the use cases are niche. The serious takes kind of miss that the point is to poke the stack and see where it breaks

Re: RTX 5090 and Raspberry Pi: Can it game?

#96

This is a funny project. Too many people taking this serious, it is more of a 'can it be done' because the physical interfaces suggest that it should be possible, and then to follow through on it to prove that yes it actually can be done. And tbh much better than I expected it to work. I can imagine that for GPU compute heavy and interconnect bandwidth constrained applications a combination like this might actually b…

it's extra funny to me because the Raspberry Pi SoC is basically a little CPU riding on a big GPU (well, the earlier ones were. Maybe the latest ones shift the balance of power a bit). In fact, to this day the GPU is still the one driving the boot sequence. So plugging a RasPi into a 5090 is "just" swapping the horse for one 10,000x bigger (someone correct my ratio of the RasPi5 GPU to the RTX5090)

This experiment really does feel like a poetic inversion

Re: RTX 5090 and Raspberry Pi: Can it game?

#97
post #16

I think the conclusion here is that Raspberry Pis are now too pricey (especially when factoring in the various required accessories) and rarely make sense for typical desktop use vs. x86 mini-PCs. They make even less sense compared to various used thin clients that can generally be found on eBay.

I think the Pi still makes sense when you actually want a Pi

Re: RTX 5090 and Raspberry Pi: Can it game?

#98
post #4

> Cyberpunk barely hits 16 FPS average on the Pi 5. This is a lot better than my memories of forcing a Pentium MMX 200 MHz PC with 32 MB SDRAM and an ATI All-in-Wonder Pro of running games from the early 2000s.

That line triggered some deep memories of tweaking config files, dropping resolutions to something barely recognizable, and still calling it a win if the game technically ran

Re: RTX 5090 and Raspberry Pi: Can it game?

#99

Earlier quoted context omitted.

> what does it mean for a GPU to drive a boot sequence It's a quirk of the broadcom chips that the rpi family uses; the GPU is the first bit of silicon to power up and do things. The GPU specifically is a bit unusual, but the general idea of "smaller thing does initial bring up, then powers up $main_cpu" is not unusual once $main_cpu is ~ powerful enough to run linux.

That’s interesting, particularly since as far as I can tell, nothing in userland really bothers to make use of its GPU. I would really like to understand why, since I have a whole bunch of Pi’s and it seems like their GPUs can’t be used for much of anything (not really much for transcoding nor for AI).

There is a Vulkan API, they can run some compute. At least the 4 and 5 can: https://github.com/jdonald/vulkan-compute-rpi . No idea if it's worth the bus latency though. I'd love to know the answer to that.

I'd also love to see the same done on the Zero 2, where the CPU is far less beefy and the trade-off might go a different way. It's an older generation of GPU though so the same code won't work.

Re: RTX 5090 and Raspberry Pi: Can it game?

#100
post #74

Earlier quoted context omitted.

I never really understood how GPIO is a killer feature with them. There are so many ways to get GPIO, from $5 USB dongles to any microcontroller/dev board that's ever exists. What's special about Raspberry Pi GPIO that I'm missing? The only case I can think of is very heavy compute that relies on low latency GPIO related to that compute?

In general the best part of the Pi is that it's so stable as a platform. Everyone has the same hardware and generally the same OS so guides online just work - it may be one of the if not the best Linux on the desktop experience I've used personally. Along with that the gpio is there and ample so it's extremely easy to just start using it. I do argue an esp 8266 or esp32 are better for a development microcontroller bu…

If it's a funky esp board, possibly. The esp8266 and esp32 boards I've used all have usb sockets for programming.
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