Hello, despite thinking about upgrading my iMac to regular 5k with 580 GPU card, now there is a chance to get an iMac PRO which probably would suit my needs even better. I am photographer and started creating video footage too, so FCPX, Lightroom and Photoshop are my main programs I use. For now the budget is not really stretchable beyond the price of base iMac however if there is a significant improvement, I could probably afford to upgrade one of the parts. Handling 4k files fluently is a must. My questions are: 1. Is the base iMac PRO powerful enough to handle 8k footage or edit it in original form (not proxy)? 2. I can choose upgrade: the RAM to 64 GB, GPU to Vega 64 or to 10 core CPU. Which one of these is the most beneficial having in mind my video/photo needs? My Current iMac has 8GB RAM and I can see it really lacks when I push it harder when editing the video. I could not find a clear answer on the net. Thank you.