Valve is working on a version of proton for ARM devices
Valve is working on a version of proton for ARM devices
This would presumably let x86 windows games run on ARM hardware.
This is almost certainly meant for the next Valve VR headset, but ARM has so much better power efficiency than x86 that a future ARM based Deck would be a huge improvement to battery life.
Also see this tweet:
VR games that have already secretly pushed Android ARM builds onto the Steam Store are ran via Waydroid (androidARM to LinuxARM)
VR games that do not have an ARM build on Steam (windows x86) are being translated/emulated via ProtonARM and FEX
Edit: here's gamingonlinux coverage of this info, includes some more information
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Amazing! I hope I can buy a Linux on ARM Steam Deck someday. It should be more efficient, lighter, and smaller.
And perform terribly because it’d have to emulate x86 because there’s no native ARM games (for Windows).
There’s no way there’ll be an ARM steam deck, unless valve wants to build an android gaming handheld for some reason.
Perform terribly on modern AAA titles, sure, but that’s a tiny % of the total Steam library. A lot of people these days don’t even bother with new AAA titles, instead playing older games or indie games. I bet Valve knows this and is working on the ARM transition specifically because of this fact.
That’s fair. I do mostly play AAA games on my deck, so “yet another android gaming handheld” isn’t at all appealing to me though.
And the second example is Rosetta 2 for gaming on ARM-based Macs. You mentioned that some emulators running x86 games (on ARM) are inefficient.
That's the point: emulation is not the same as translation.
Translation is generally more efficient than emulation and can sometimes even match or exceed the performance of native execution.
Apple’s M-chips have dedicated hardware to accelerate rosetta 2 (support for x86 memory ordering), please stop using rosetta2 as a show of what x86 on ARM can do, as it is a vertically integrated piece of software that is not indicative of the current market for anyone outside of apple.
Just take a look at windows on those new qualcomn chips - when they do the translation, the performance is underwhelming to say the least.
Yes, it will improve, but it currently does not exist outside of Apple.
The translation on ARM macs is actually strongly related to Valve because Rosetta 2 and the Game Porting Toolkit are based on the open-source Proton, which was developed by Valve. So, it’s not an Apple-exclusive technology; it’s closely tied to Valve. Valve could also collaborate with AMD or others to develop custom SoCs, similar to what Apple has done. I believe Valve has the ability and ambition to do the same thing, but even better than Apple. Because they have done it once with the Steam Deck.
Rosetta and proton are two completely different layers.
Game porting toolkit is indeed also based on wine, but that’s only the conversion of directX to ogpl or vulkan (using metalVK in Apple’s case)
Rosetta is a completely separate harware accelerated (as in, the chips have dedicated hardware for this) translation layer for x86 to ARM
Given the lengths they had to go through to get even this custom APU, I can only imaging the difficulty in procuring a first-gen ARM offering from AMD.
I swear, this is just the “VR is really here, and it’ll replace conventional gaming!” Debate all over again. I’d be surprised if it happens in the next two years. After that? Maybe, if x86 doesn’t catch up more than it already has (which I fully expect it to do).
I never said it would happen in the next two years. I just said that it's a possible path, and apparently, it has no chance of happening in two years. Valve's next step in two years is apparently to update the Steam Deck 2 with AMD x86 chips. A 5- to 10-year period is what I expect.
I won’t talk about this anymore with you. Bye.
And hardware acceleration is not as important as you emphasize. A traditional ARM chip running native ARM and cross-platform games, and some x86/Windows/DirectX games that don’t need hardware acceleration to translate on Linux on ARM is competitive enough in the gaming market. At least it's more ecologically rich than Android games (if you have any doubt, just look at the Nintendo Switch!), and it would function as a PC too.
Some games don’t need hardware acceleration to be translated. Others that do need it can’t be translated, just like some games don’t support SteamOS. Overall, it doesn’t affect the Steam Deck’s success!
Which you said is a backward compatibility issue. Some games that are developed only for x86 or the DirectX API have performance issues, but other games that support cross-platform or cross-platform APIs like Vulkan do not have this problem.
An obvious example is the Nintendo Switch, which goes against your argument.
Because of backward compatibility, x86's efficiency still can't match ARM's. That's why I said games run on ARM would be more efficient, lighter, and smaller (when they natively support ARM).
If you have any doubts, just look at the Nintendo Switch.
This myth that ARM is more efficient needs to die already. The ISA has almost no impact on efficiency, and especially no impact on gaming, where the GPU is the much more important thing.
I always figured the reason arm chips tend to be more effecient is that theyve been developped for phones
The architecture was originally developed for desktop PCs, but they discovered it was incredibly efficient at the time (late 80s, early 90s), so Apple partnered with ARM to develop it for the Newton.
The first commercial device with an ARM chip that I remember fondly was a Gameboy Advance.