2019 15" Lenovo Legion Y740 (RTX2060) [9th,6C,H] + RTX 3070 @ 32Gbps-TB3 (Mantiz Saturn Pro) + Win10 20H2
I did not see such a difference between the 1070 in the desktop and in the eGpu case, so I swappen the 2 cards, the 1070 stays in the Core.
(I also had problems in divison 2 after activating the DX12 rendering)
The new higher end cards leave too much performance on the table, even comparing it to the 10th gen it would be 35% loss.
Shame on Lenovo I guess - I'm getting 3400 points on Heaven at 1920 x 1080 extreme - see https://egpu.io/forums/builds/2018-13-dell-xps-13-9370-8th4cu-rtx-3070-32gbps-tb3-razer-core-x-win10/