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Thread: AMD boasts of Vulkan multi-GPU support in Strange Brigade

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    AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Shows that 2x Radeon RX Vega 56 cards can scale performance by 1.9x in this game.
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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    glad to see x-fire/sli support in games, seemed to have gone out of fashion for some reason.
    i`m sure there will be a lot of people here who will enlighten me as to why.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Quote Originally Posted by Strawb77 View Post
    glad to see x-fire/sli support in games, seemed to have gone out of fashion for some reason.
    i`m sure there will be a lot of people here who will enlighten me as to why.
    Buying two GPUs is usually quite expensive, and doesn't suit a lot of hardware. It's a purely enthusiast thing. Which means very few people have SLI/xFire to begin with.

    Then game devs asked themselves why they work hard and optimise, improve, for the sub-1%.

    It'd be popular again if engines and platforms just did the optimising for them, or knew natively how to make good use of multiple GPUs.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Now the first AAA game to support multi-GPU in Vulkan has been released - the action-packed Strange Brigade for PC
    Doom? Pretty sure that has mutli-gpu under Vulkan as I have the game and multi gpu's.

    Could be wrong, will check when I'm home.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Quote Originally Posted by Ozaron View Post
    Buying two GPUs is usually quite expensive, and doesn't suit a lot of hardware. It's a purely enthusiast thing. Which means very few people have SLI/xFire to begin with.

    Then game devs asked themselves why they work hard and optimise, improve, for the sub-1%.

    It'd be popular again if engines and platforms just did the optimising for them, or knew natively how to make good use of multiple GPUs.
    For DX9/11 and OpenGL the SLI/CrossFire work was done by the driver developers - the guys that implement the DX and OpenGL interfaces. It usually worked quite well, up to a point, but required driver-level hackery for some specific games (mostly down to game devs not following the standards or the driver devs doing weird stuff in the background).

    DX12 and Vulkan require the game engine developers to do the multi-GPU work. This means the games using said engines tend to be more efficient and it puts the "making it work well" ball squarely in the game/engine developer's court. *If* the developers have the time/budget to cater to the minority with multiple GPUs then they can likely do it better than SLI/CrossFire ever could.

    Also, pretty sure that sub-1% figure is too low. AMD have been pushing the RX4/5xx series to budget-orientated gamers as you can buy one, then get another later and get a nice performance jump. Just a hunch. I don't have any figures to back this up, but I'm pretty sure it's too low.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    I am 99% sure DOOM does not support mGPU
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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Quote Originally Posted by shaithis View Post
    I am 99% sure DOOM does not support mGPU
    You are correct, my memory was wrong. The game does actually turn on the second GPU but then doesn't use it. Burning extra power for nothing!

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Its a shame Nvidia have blocked their GPU's from working with AMD cards, because both offer a complete gaming experience.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Quote Originally Posted by Strawb77 View Post
    glad to see x-fire/sli support in games, seemed to have gone out of fashion for some reason.
    i`m sure there will be a lot of people here who will enlighten me as to why.
    It's easier to sell one GPU for twice the price than two

    Also nVidia decided that they didn't want high end card demand impacted by people buying two mid-range cards. AMD didn't put any such restrictions on, but such is the nVidia marketing engine they alone had quite an impact on how much it's talked about.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    Quote Originally Posted by Strawb77 View Post
    i`m sure there will be a lot of people here who will enlighten me as to why.
    The original SLI (Scan Line Interleave) dual GPU on 3dfx Voodoo cards was almost perfect scaling as the simple shading was limited by texture fill rates. These days with programmable shaders doing multiple passes on a scene it is harder to get good scaling splitting across multiple cards.


    Doesn't sound like this would help budget gamers with integrated graphics and a low end graphics card to get the most out of their hardware though.

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    Re: AMD boasts of Vulkan multi-GPU support in Strange Brigade

    +1 to amd but they should try to bring this to their other supported titles and try and integrate their version or raytracing into games as they haven't presented us with a demo of it yet

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