Dear Fellows
I recently upgraded my MacPro 5,1 (2 x 2.93 GHz 6-Core, 64GB RAM, 512GB 970NVME) with a Radeon 7970 3GB VRAM.
The card performs very good, Geekbench Score is at 100'000. Ungine Heaven @ extreme gets me 827 Points.
So far so good. Around twice the performance from my MacBook Pro...