DGX Spark vs RTX Spark

I thought long and hard about it, not in a search of new pc, but potentially I want a great working laptop for work and travel. I have a pretty good one, 2 yo i9 with 32g and rtx 4070ti 12g. Ideally I want a rocketship of course. But rtx spark just seems is nowhere. Underdeveloped windows arm, not natively compatible with amd64/x64. So to run or build native windows software an emulator needed. While they exist and pretty good it’s not the same as bare metal. I have some dependency on windows only x86 stack and have to build software for it. Most of my solutions are cross-platform dot net but a vital piece is anchored to windows dotnet x64 and nothing I can do about it. So no easy solutions here. So if we look at hybrid path then rtx spark is actually inferior by a mile to macbook m5 max 16 128g. 800Gb/s ram, really good GPU. Can run models under 80-90Gb faster than single spark. Same quality emulator for windows x64 as rtx arm. Windows. But much better package overall than any contraptions from Microsoft. Still not fully native solution. I imagine myself traveling with 16 inch 7k macbook, 16inch windows i9 laptop, 7k worth of 2 sparks, portable monitor in my backpack in airport security queue. Reassuring picture.