I have the ProArt, and can confirm that the ECO mode issue has been resolved, so you'll be able to run the X chip at the 105W option or 65W option without issues. There was an instance on the November BIOS where it would not stick to the ECO mode settings properly.
I would say that if you are going to make use of the 10gbe, and/or the USB4/Thunderbolt connections, then I can recommend you go with the ProArt. One reason for this, is (as I mentioned in another thread), a LOT of higher end GPU's are now coming with multi-slot coolers. 2.5 or 3 slot is common, and some are moving into 3.5 or 4 slot territory. And some are even punching into the 4.2 or 5 slot region (Asus x Noctua on their upcoming 4080 16GB). What this means is, that the second x16 slot (eletronically rigged for PCIe 5 x 8) is most likely going to be non viable for use (as it'll be covered by the GPU's cooler), or if it is viable, potentially suffocating for any GPU in the top x16 slot. So rather than looking for expansion cards to slot in later down the line (that may also suffocate your GPU), you simply have them installed on the motherboard already.
And of course, the price of getting these additional features from expansion cards, will cost more than the £140 that the price difference between the two will be (currently, can't say about the future though). This is most evident with the USB4 card, vs a 10gbe card, as those can be had from £80 new at least. But that USB4/Thunderbolt card is a different matter. Often well above £100 as a starting price.
