Quote:
Originally Posted by uptheoctave
Expansion chassis come with a few downsides.
You get much slower data transfer over TB than you do over PCIE.
My Mac Studio with a Sonnet chassis tops out around 2700MB/s over TB.
The 2019 Mac Pro will do double that.
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Double? It does boat loads more than double PCIe bandwidth. A Thunderbolt 3/4 expansion chassis has 4 x PCIe 3 land of bandwidth.
If early reports that the new Mac Pro has 6 open slots at 2 x 16 PCIe 4 lane slots and 4 x 8 PCIe 4 lanes are correct then that a M2 Mac Pro has 2 * (( 2 * 16) + (4 * 8)) / 4 = 32 times the internal PCIe IO bandwidth of a Thunderbolt 3/4 chasssus (irregardless of how many slots it has).