Sounds like a job for Radeon 6570 man
He's a super hero GPU card that can save you from lack of 3D playback for under $50
That's your easiest solution to get 3d and would work fine with your CPU
But you still might want a server or mess with things
Also the GPU card will improve MADVR, it's better than iGPU
You should get better madvr results and prevent the stuttering.
RADEON 7790 '($99-$120) is top end choice if you want to get serious with GPU and/or think you might upgrade your CPU later. That should get you good results in madvr on the higher levels. (Jinc3/AR)
"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."