Medium RAW and high ISO noise

I have sometimes shot a medium RAW on both a 5dII and 7d and it has occured to me that there maybe less noise at medium RAW, and then a moment later I think the opposite.
Any thoughts?

Take two shots of the same scene, one in Raw and one in MRaw. Resize them to the same size and post them here. Then we'll tell you.

No difference, it is just resized down. This comes up once in a while, and with a simple experiment, you can see this for yourself.

Here is my result.

I agree with Teamspeed's conclusion.
One thing I have noticed is Mraw requires less Noise reduction in PS to clean it up.
But once clean the two images do look the same, not a noticable IQ loss between raw and mraw after appropriate NR.