What's the drawback in using this eGpu on a thunderbolt II mac book pro, with a tb2 to tb3 cable? (MacBook Pro (Retina, 15-inch, Late 2013))

Blackmagic eGPU

Blackmagic eGPU

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4 Answers from the Community

  • Answer

    The "drawback" (as you put it) is that it won't work. Thunderbolt 2 simply doesn't have the bandwidth, and Blackmagic specifically states that this configuration of your older machine and an adapter is not supported and will not work.

  • Thunderbolt 2 can't run at the same speeds as 3, so the graphics boost won't be as effective. Depending on how the TB2-3 cable works, it might not function whatsoever, but I doubt it.

  • regardless what you use you loos about 20% of bandwidth when you use a thunderbolt 3 connection for video card, so the lower you go with thunderbolt 2 or 1 the more you loose in graphics performance. The other thing is Apple doesn't support thunderbolt 2 or lower for EGPU support so your out of luck if you want to use Thunderbolt 2.

  • It does not work. (i know.....I was bump by it too)

    Can I use an Apple Thunderbolt 3 to Thunderbolt 2 adapter with an older Thunderbolt 2 computer?

    No, the Blackmagic eGPU won't work with Thunderbolt 2 computers as they don't support the speed required for good eGPU performance.