(they're not, GPU is 3x)
Try more like 11x, dollar for dollar. R7 370 should be above 300khash/sec.
you'll see MTP was exposed as fundamentally not memory hard by disgruntled a miner developer who complained of inexplicable code changes,
I think you're referring to me; I definitely didn't expose it --
Itai Dinur and Niv Nadler did that and they deserve 100% of the credit for their excellent paper.
I do have very serious concerns with the band-aid cooked up in response to Dinur+Nadler's paper.