Steam Deck

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Valve is working on a version of proton for ARM devices (x.com)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 4 points 1 month ago* (last edited 1 month ago) (1 children)

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.

[+] [email protected] 1 points 1 month ago (1 children)

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[–] [email protected] 1 points 1 month ago* (last edited 1 month ago) (1 children)

That's a backward compatibility issue, which means some games developed for x86, Windows, or DirectX just can’t be translated without glitches. This means not every game developed for x86, Windows, or DirectX can be translated well on ARM.

I said that 'some games that are developed only for x86 or the DirectX API have performance issues'; I didn’t say 'every game.' I mean that games with native support or cross-platform support are certainly better than those developed only for DirectX, Windows, or x86.

For example, many games developed exclusively for Windows/DX can’t be played on SteamOS. So how can you be certain that games developed for x86, Windows, or by DirectX would be totally well supported on ARM?

And you mentioned Qualcomm. Fine, look at the Qualcomm X Elite SoC computers. Do they run x86, Windows, or DirectX software or games steadily, efficiently, and well? Do they have many glitches when running Windows and x86 software?