As a AmigaOne X1000 user, I want a silent graphics card

At http://hdrlab.org.nz/projects/amiga-os-4-projects/radeonhd-driver/radeonhd-driver-hardware-compatibility/ you can see all graphics cards supported by AmigaOS 4. My A1 was fitted with an Radeon HD 5450. This card works great actually; it can display resolutions up to 3480x2300 (or whatever it is is, it fills my 32 inch screen at least). I however wanted an upgrade. I chose a used R9 280x. Compared to the 5450 it’s huuuuge, and it has 3, yes three, fans. It’s a friggin' monster! But it works. However, the fans are loud. It starts off ok with the three fans going at moderate speeds, but it quickly gets hot, and the fans try their best to cool it down. Keeping an eye on my A1's temperature, I noticed its approaching 50 degrees and above. Also, I couldn’t stand the noise. So I downgraded back to my passively cooled 5450. And the temperatures of my entire system went down to a more healthy 40 degrees.

But still, I want a new card. So, the hunt for fanless cards begin.

Radeon HD 5450

Radeon HD 7750