Sapphire Shows Us its Radeon HD 7970-based Vapor-X 6GB

At Computex, Sapphire shows us its Radeon HD 7970-based Vapor-X 6GB, which gets it name from its dual-fan vapor chamber cooling. It has an eight phase VRM for the GPU and is made from a 12 layer PCB and Black Diamond Chokes, which allow the card to run cooler and more efficient.

apphire claims that its product has improved stability, more overclock room and lower peak temperature compared to the reference model. This, of course, makes room for a button for instant overclocking to 1100 MHz for the GPU and 6000 MHz for the memory.

  

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  • jimmysmitty
    Huh. I can tell you that the Vapor-X does keep them about 10c cooler than even normal Sapphire setups. Now I might have to get this and trade in my HD7970 for it. 6GB of VRAM would be pretty insane.....
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  • blazorthon
    TheBigTrollim pretty sure that the 7970 itself will bottleneck the 6gb of vram. if you throw this thing in a quad-crossfire array, you in theory get 24gb of vram


    You'd have 24GB of VRAM total, but each GPU can still only use its own VRAM. Graphics cards can't share data on a high enough bandwidth connection in order to share memory capacity between the GPUs and CF/SLI can't change that. They would need to be able to talk to either the other GPU or the other GPU's memory at an equal speed to their own and this is almost definitely not something that would work well in if tried.

    Theoretically, AMD/Nvidia could do this on dual GPU cards where they could link the two GPUs to each other and/or to all of the memory on the card with very high bandwidth and minimal latency, but chances are that this would require a modified or completely new RAM interface and I think that it might need double the input/output ports to reduce the chance of a two GPUs fighting each other over RAM access. This would mean more complex and expensive RAM chips would be needed and the memory controllers might need to be modified. However, the card would not need each GPU to have its own huge reserve of memory, so it could be done cheaper if fewer of these chips were used than would be used by a more conventional dual GPU card today.

    Regardless, GPUs on separate cards would need some sort of breakthrough to be able to share memory at high speed enough bandwidth and with acceptable latency. The latency might be an almost easy thing to do because GPUs don't seem to be the most latency limited devices, but the bandwidth problem doesn't seem like an easy thing to solve cheaply.
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  • blazorthon
    This is the sort of card that would be thrown in triple and/or quad Crossfire rigs for huge resolution gaming. I don't think that there's any other practical way to utilize that much VRAM in gaming. This is definitely an aspect of gaming where the 7950 and 7970 would be far better than the GTX 670 and GTX 680 regardless of the game due to 7900's better performance relative to GTX 670/680 as the resolution and other settings are increased.
    12
  • Other Comments
  • ilysaml
    But that wasn't the Toxic we saw before, was it?
    6
  • jimmysmitty
    Huh. I can tell you that the Vapor-X does keep them about 10c cooler than even normal Sapphire setups. Now I might have to get this and trade in my HD7970 for it. 6GB of VRAM would be pretty insane.....
    13
  • blazorthon
    Quote:
    apphire claims that its product has improved stability, more overclock room and lower peak temperature compared to the reference model. This, of course, makes room for a button for instant overclocking to 1100 MHz for the GPU and 6000 MHz for the memory.


    I'm pretty sure that here in the first word of second paragraph, there should be a capitalized letter s before apphire.
    0