I have a HTPC inside a small chassis: Silverstone ML3 (http://www.silverstonetek.com/product.php?pid=283&area=en).
It has a Core i3 2125 on a ASrock motherboard, 4GB DDR3, 2 RAID1 WD caviar Green.
I cannot remember any further details but it's not important because the only problem is that the Core i3's HD3000 IGP resolution up only to 1080p (even the motherboard HDMI output cannot go further).
I have a new UHD TV and thus, I'm looking for a PCI-E graphic card:
- That can fit inside the slim chassis (that is 105mm high, but a bit less because of the motherboard).
- Preferably passive (or at least that remains as silent as possible)
- That support UHD output (3840x2160)
- Stays as cheap as possible: the only use will be playing UHD movies, no games.
- Still, is easy in hardware x265 decoding.
Following the first answer, I'd like to precise that a gaming GPU is kind of overkill for the final use (expensive, fan, a lot of power for "nothing" etc.). I did my own researches and found that nvidia's GPU (don't know for AMD) have HDMI 2.0 (required for UHD) starting from GTX950 wich excludes anything cheaper. The GT710 (even GT730) solution only has a 1.4a HDMI output and it seems that in order to lead to a UHD resolution through 1.4a, nvidia is processing some kind of colour compression which is ... urghhh, not what I'm looking for.
Finally it seems that I'll have to wait a bit before finding my dream GPU, maybe with the new Pascal architecture ? Since nvidia hasn't released the low-end new GPUs...