Would a future AGA capable of an RTX 30XX be of any use to 2020 laptops?

Discussion in 'Alienware' started by kylera, Aug 31, 2020.

  1. kylera

    kylera Notebook Consultant

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    The AGA port on the most recent Alienware laptops seem to be capable of supporting (up to?) PCIe Gen 3 x4. The most recent leaks of the RTX 3090 mention PCIe Gen 4.

    Based on what I’ve read so far, it seems that the connectors should match up (Gen 3 card in a Gen 4 slot and vice versa). However, a Gen 4 card in a Gen 3 slot won’t be fully utilized due to the bandwidth difference.

    I created this thread because when I first came across the AGA, it sounded like a decent mid-term upgrade idea, but reading up about the differences in the new generation gave me pause. Given that I’m getting a laptop in the tail end of the RTX 20XX generation and the growing number of places Gen 4 is going to show up, I’m starting to have some second thoughts about this upgrade path and feel like (assuming there isn’t a catastrophic failure or theft), I should just save up for a computer with whatever comes after the RTX 30XX lineup.

    Thoughts?
     
  2. cruisin5268d

    cruisin5268d Notebook Evangelist

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    I have no way of knowing if a new AGA will be released or if the new Nvidia GPUs will or will not be useable in existing slots.


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  3. kqmaverick

    kqmaverick Notebook Consultant

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    No alienware laptop has pcie 4 since Intel has not yet released a processor with pcie 4 and for some reason does not want to support the new amazing AMD processors. As for the AGA itself pcie 4 is backwards compatible so the cards should work but none will physically fit in the AGA without the cover removed.
     
  4. kqmaverick

    kqmaverick Notebook Consultant

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    Accidental double post
     
  5. kylera

    kylera Notebook Consultant

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    I guess we will have to wait for benchmarks to see how much power is lost because of PCIe 3.
     
  6. Clamibot

    Clamibot Notebook Evangelist

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    I would say no performance would be lost due to supporting PCIe 4. No GPU in existence today comes close to saturating the bandwidth provided by a PCIe 3 x16 slot, and I don't think there are any that saturate a PCIe 3 x8 slot either.
     
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