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During the Game Developers Conference, Qualcomm informed game developers that their games should already run on the wave of future Windows laptops based on Snapdragon chips. To run games, you will not need to port games to the Qualcomm platform.
Qualcomm engineer Issam Khalil said the unannounced laptops will use emulation to run x86/64 games at near full speed. These laptops may soon hit the market. Qualcomm has confirmed it will release Snapdragon X Elite systems this summer, and unannounced consumer versions of the Surface Pro 10 and Surface Laptop 6 with these chips are expected in May.
“Your game should already be running,” says Qualcomm.
With Windows laptops based on Snapdragon chips, developers have three options, Khalil explained:
- Migrate your projects to ARM64 architecture for better processor performance and power consumption, since the Qualcomm scheduler can dynamically reduce the processor frequency this way.
- Create a hybrid ARM64EC program where Windows and its libraries and Qualcomm drivers run natively, but the rest of the program is emulated for “near-native” performance.
- Do almost nothing and their game should still work – using x64 emulation.
He says developers don't need to change the code or assets of their games to get full speed. Most games are graphically limited by the GPU rather than the CPU, and Qualcomm says GPU performance will not be affected. And while Qualcomm sees some impact on processor performance when moving between x64 and ARM64, it only occurs the first time a block of code is translated—”subsequent passes are direct cache accesses,” says Khalil.
Qualcomm says it has Adreno GPU drivers for DX11, DX12, Vulkan and OpenCL, and will also support DX9 and up to OpenGL 4.6 via display layers.
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However, not everything is as rosy as we would like. Games that rely on kernel-level anti-cheat drivers (which are growing in popularity) will not run in emulation mode. For now, games using AVX instruction sets will also not work, where Khalil suggests developers use SIMDe.
The company would not name the specific games that work through emulation or how many games it has tested. However, Qualcomm tests all the top games on Steam, which makes it confident that most games should work.
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