• scrion@lemmy.world
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      1 month ago

      For years, Intel’s compiler, math library MKL and their profiler, VTune, really only worked well with their own CPUs. There was in fact code that decreased performance if it detected a non-Intel CPU in place:

      https://www.agner.org/optimize/blog/read.php?i=49&v=f

      That later became part of a larger lawsuit, but since Intel is not discriminating against AMD directly, but rather against all other non-Intel CPUs, the result of the lawsuit was underwhelming. In fact, it’s still a problem today:

      https://www.extremetech.com/computing/302650-how-to-bypass-matlab-cripple-amd-ryzen-threadripper-cpus

      https://medium.com/codex/fixing-intel-compilers-unfair-cpu-dispatcher-part-1-2-4a4a367c8919

      Given that the MKL is a widely used library, people also indirectly suffer from this if they buy an AMD CPU and utilize software that links against that library.

      As someone working in low-level optimization, that was/is a shitty situation. I still bought an AMD CPU after the latest fiasco a couple of weeks ago.

    • Scrubbles@poptalk.scrubbles.tech
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      1 month ago

      Honestly even with gpus now too. I was forced to team green for a few years because they were so far behind. Now though, unless you absolutely need a 4090 for some reason, you can get basically the same performance from and, for 70% of the cost

      • Cyborganism@lemmy.ca
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        1 month ago

        I haven’t really been paying much attention to the latest GPU news, but can AMD cards do ray tracing and dlss and all that jazz that comes with RTX cards?

        • natebluehooves@pawb.social
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          1 month ago

          DLSS is off the table, but you CAN raytrace. That being said I do not see the value of RT myself. It has the greatest performance impact of any graphical setting and often looks only marginally better than baked in lighting.

          • Cyborganism@lemmy.ca
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            1 month ago

            It depends greatly on the game. I’ve seen a huge difference in games like Control where the game itself was used to feature that… Well… Feature! You can see it in the quality of the lighting and the reflections. You also get better illumination on darker areas thanks to radiated lighting. It’s much more natural looking.

          • linkhidalgogato@lemmy.ml
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            1 month ago

            dlss is a brand name both amd and intel have their own version of the same thing, and they are only a little worse if at all.

        • Scrubbles@poptalk.scrubbles.tech
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          1 month ago

          Yes, but by different names. They use FSR that’s basically the same thing, I haven’t noticed a difference in quality. Ray tracing too, just not branded as RTX