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Example of ThunderBolt tandem with eGPU

We all was wondering how will apple implement TB on new macpro… well we can continue wondering.

Here is example of possible solution…not

They use lucid virtu mvp i-mode to pass rendered image from external gpu to internal gpu which is connected to TB.

No matter what, it gives performance hit (and lga2011 xeons doesnt have iGPU anyway).

Still interesting video to watch.

Comments

  1. corehoundboi
    June 18th, 2012 | 3:26 am

    They are obviously waiting for GPU’s that have thunderbolt built in some way

    or mabye they will go for some future tech CPU from NVIDIA or ARM or some thing crazie for mac pro lol…

    How hard would it be to put thunderbolt on a discreat GPU? it could handel it right?

  2. No One
    June 18th, 2012 | 4:02 am

    Putting Thunderbolt on a discrete GPU card would be the most elegant way to get that technology into future (and current) Mac Pro’s. There are several catches with this approach. First is that there would not only be an additional Thunderbolt chip on the card but also a PCI-e bridge chip. This bridge chip would be responsible for providing the dedicated four lanes of PCI-e connectivity while the GPU gets the rest of the system bandwidth. Another limitation would be power consumption. High end GPU’s are running close to PCI-e power limits. To compound the issue, Apple doesn’t use 8 pin PCI-e power connectors (at least yet) which limits board power to 225 W. A GTX 680 has a rated board power of 195 W so that’d be 30 W spare for both the Thunderbolt connector and PCI-E bridge chip. The last catch would be that neither AMD or nVidia have expressed any interest in Thunderbolt. Apple usually contracts these companies to produce custom boards but they likely opt out of this design as it’d require them to cozy up to Intel to make it happen. So if Apple wants a custom discrete board for a Mac Pro, they’ll likely have design it themselves.

  3. ^Andy^
    June 18th, 2012 | 9:23 pm

    So once again a solution looking for a problem to solve?

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