David's random thoughts@david_random P.544

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David's random thoughts@david_random P.544

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David's random thoughts

David's random thoughts

Mesa RADV哪都好，但新硬件上有两个问题： 1. 光追性能较差，看代码发现只用了image_bvh_intersect_ray没有ds_bvh_stack_rtn，也就是RDNA3/4都是RDNA2级别的纯软件traversal。 2. 没有支持RDNA4的cooperative matrix。所以现在RDNA4在Linux下玩游戏或者跑LLM还是得用amdvlk……嗯现在ROCm也是废的。

https://www.phoronix.com/review/radeon-rx9070-radv-amdvlk/3

Phoronix发了一些实测数据

Mesa RADV vs. AMDVLK Vulkan Driver Performance For The AMD Radeon RX 9070 Series

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Create: 2025-03-21
Last Update: 2025-07-31 09:29:00

https://www.phoronix.com/review/radeon-rx9070-radv-amdvlk/3

Phoronix发了一些实测数据

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