graphics card upgrade on Mac Pro 5.1
I'm wondering if updating a Mac Pro 5.1 [2 x 2.66 Ghz 6-COre Intel Xeon] graphics card from ATI Radeon HD 5770 is worth it, and if so which to choose? I'm currently running Mac OS 10.13.6 to hang onto my Adobe CS6, although I could move to Adobe CC if that makes upgrading the Mac OS possible, and affects which card to get. I'm looking at migrating Final Cut Pro 7 projects from an even older computer (Mac Pro 1.1) to Final Cut 10 (which I haven't purchased yet). Final Cut 10.4.6 is the latest FCP that will run on OS 10.13.6. The latest version of FCP demands Mac OS 11.5.1, and it wants a "metal capable graphics card": several cards are listed at the link, am I to assume all are metal capable? Which would allow me to remain at 10.13.6, or is that a lost cause? What do I really gain moving forward to 11.5.1, and what am I apt to lose in terms of compatibility with Adobe et al ? Actually, migrating the old FCP files isn't the biggest issue— continued use of the Adobe CS6 or CC, is.
Mac Pro, macOS 10.13