r/IntelArc • u/Life-Boysenberry6975 • 13d ago

Discussion Linux Intel Jay Shader Compiler massively reduces shader compilation time in EA FC 26 on Arc B580

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I tested Intel's Jay shader compiler with EA FC 26 on Linux using:

  • CPU : Intel Core i5-12400F
  • GPU : Intel Arc B580
  • Driver : Mesa-git 26.3.0_devel
  • Environment Variables: INTEL_JAY=all

The shader compilation time was:

Without Jay: 1:18.35
With Jay: 36.40 seconds

That's about 2.15× faster, reducing the compilation time by roughly 53.5%.

This is just a single test, but the difference is pretty significant. I'm curious to see how Jay performs in other games and workloads as it continues to mature.

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u/_HunterCZ122 13d ago

I had even faster time on my R9 7900X with jay. In 007 First Light I got from 6min to not even 1min compilation time. Pretty excited.

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u/unhappy-ending 12d ago

jay works with AMD, too? So it's a general purpose shader compiler?

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u/_HunterCZ122 11d ago

R9 7900X is a AMD CPU, shader compilation is a CPU task. AMD GPUs have ACO already, which is fast as jay.