[brazen1]

Yes, a 1050Ti will work.  You want 4GB of memory or more from what ever you choose as some models only have 2GB and are not strong enough to take advantage of more madVR algorithms.  You might also want to consider a full size dual fan model to keep quiet.  Perhaps a single fan model is quiet also but never tried one aside from long ago (650Ti) with a modified firmware to slow the fan at idle.  Newer cards fan(s) rarely engage at least my GTX 960 4GB.  Some of you might also consider installing EVGA Precision XOC to overclock a bit for some extra oomph.  Google tested settings by others for your GPU.  Your Q9559 is fine.  All the workload is done hardware decoding via the GPU.  CPU has little to do with anything unless you prefer to software decode vs hardware decode.  Hardware decode is much better.  Software decode is preferred by most device boxes because GPU's in them are garbage and upgrading would overheat them faster.  Also the leading reason why they are all limited in capability and problematic when it comes to more advanced functions like what we do here.  Google for hardware decoding or not on various GPU's.  Stay away from Hybrid combo's of software/hardware decoding.  These are gaming cards aimed at preserving battery charge in laptops and irrelevant to HTPC's.  Understand many GPU models are answers to other models made by other manufactures so that their model covers the same niche as someone else.  For this reason a 980 for example is not a better model than a 960 simply because the number is higher for the video processing we do here.  Choose carefully.