I think 270 mbps is the max for 2.4 Ghz
I get 300 Mbps using 2.4 Ghz. Not sure about your 270 response.

Doesn't make sense to me.
720P / 1080i / 1080P are "Not" streamable on any dlink router, as their max transport is below 1.5 Ghz.
Any lowering of video frame rates below 30fps for 1080i, 60fps for 720P or 1080P, 1080psf24 data rates below 1.5 Ghz would refer to a non-compliant HD stream. 3Ghz for 1080P. Anything less is not standard. Oh yes "they can say" it's HD, but truly it is not. Can you say divx is HD? In terms of what people think?No. Even HD on cable or satelite is not real HD because of compression. Try rabbit ears for best quality. Too bad you can't get internet with rabbit ears. We could avoid all of these router problems.

Dir-655 doesn't stream real HD, or Full HD. It can't. But, it sure sounds nice.