HTPC for games - upgrade vs completly new solutions

[413x]

I have a small pc under my TV that I use for TV, games films etc

Everything apart from games could be achieved with minimal hardware and I'm now at the point where I need more grunt

The box is small and thus heat becomes a problem.

It's an old h61 (I think) chipset. And dual core.
Is got a 7950 gpu in there

Now what I don't want is to maintain two PCs, but I play more on the TV than the desktop.

Do I have to bite the bullet and upgrade? If I do I need more performance with no more heat!


Or does anyone have any other solutions?

 

[413x]

I will have to find out the HTpc spec. It's so long ago I can't remember
Everything is powerline. I've managed full blu ray transfer rates (more than 10MBytes/s I think)

Haven't tried steam stream.

It would probably save on power if I could strip out the gpu. As when watching films I really don't need anything but Integrated graphics

Game I'm thinking of getting is fallout 4

Come to think of it I think it's an i3 2120, and 7850.

PC upstairs has plenty of grunt with twin 280x (no nvidia cards anywhere)