4 Replies Latest reply on Sep 7, 2018 4:11 PM by rguevara

    Thunderbolt 3 eGFX box vs PCIe enclosure (DSL6540 vs JHL6540): Any performance difference (due to firmware etc.)?


      Dear Intel,


      There is much speculation in the technology and gaming community about what the real firmware and hardware difference between a certified eGFX box such as the Razer Core X, and a Thunderbolt 3 PCI enclosure such as the Akitio Node Pro, is.


      Some people have interpreted that Intel pages such as this one https://thunderbolttechnology.net/blog/external-graphics-egfx-vs-generic-pcie-expansion-enclosures-explained are saying that the eGFX boxes somehow have latency optimizations that could make a real-world difference for an eGPU, and this would be a reason to buy the Razer Core X instead of the Akitio Node Pro.


      https://egpu.io/akitio-node-pro-review-jack-of-all-trades/ writes "One main difference with eGFX enclosures is in the Thunderbolt 3 controller selection. AKiTiO used a JHL6540 Thunderbolt 3 controller for the Node Pro. The Thunderbolt 3 eGPU enclosures I’ve reviewed so far use the DSL6540 controller instead. As far as eGPU performance goes, the Node Pro may have additional latency due to this JHL6540 controller and dual TB3 port arrangement.".


      However, having a daisy chain TB3 port - and those only exist on the non-eGFX boxes such as Akitio Node Pro - could be useful, just if needed at some point, you never know when you will fill up all the laptop's Thunderbolt 3 ports, and bus-powered Thunderbolt 3 devices don't have any daisy chain connector.


      Therefore, can you please clarify if there is any real performance difference between the eGFX box firmware and the TB3 PCIe enclosure firmware, that would make either less suitable for running a GPU out of?