Keeping the old ... young

Hello,
So I own an Early 2009 MacPro that I'd like to keep going. It currently hosts a QuadroFX 4800 GPU, but I'm not sure how to get any more out of it. My problem is that it won't fully run my current monitor setup ::

• Apple 30" Cinema Display 2560 x 1600
• Samsung 34" Ultrawide 3440 x 1440

Surprisingly the Quadro handles both these monitors at their native resolutions, but there are issues with the Ultrawide. There's no problem with the Cinema Display at all (it has a...

Keeping the old ... young